diff options
Diffstat (limited to 'src/grp-boot/systemd-boot')
21 files changed, 3999 insertions, 0 deletions
diff --git a/src/grp-boot/systemd-boot/.gitignore b/src/grp-boot/systemd-boot/.gitignore new file mode 100644 index 0000000000..e193acbe12 --- /dev/null +++ b/src/grp-boot/systemd-boot/.gitignore @@ -0,0 +1,2 @@ +/systemd_boot.so +/stub.so diff --git a/src/grp-boot/systemd-boot/Makefile b/src/grp-boot/systemd-boot/Makefile new file mode 100644 index 0000000000..3b4d4ddda1 --- /dev/null +++ b/src/grp-boot/systemd-boot/Makefile @@ -0,0 +1,193 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew JÄ™drzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_EFI),) +ifneq ($(HAVE_GNUEFI),) +efi_cppflags = \ + $(EFI_CPPFLAGS) \ + -I$(top_builddir) -include config.h \ + -I$(EFI_INC_DIR)/efi \ + -I$(EFI_INC_DIR)/efi/$(EFI_ARCH) \ + -DEFI_MACHINE_TYPE_NAME=\"$(EFI_MACHINE_TYPE_NAME)\" + +efi_cflags = \ + $(EFI_CFLAGS) \ + -Wall \ + -Wextra \ + -std=gnu90 \ + -nostdinc \ + -ggdb -O0 \ + -fpic \ + -fshort-wchar \ + -nostdinc \ + -ffreestanding \ + -fno-strict-aliasing \ + -fno-stack-protector \ + -Wsign-compare \ + -Wno-missing-field-initializers + +ifneq ($(ARCH_X86_64),) +efi_cflags += \ + -mno-red-zone \ + -mno-sse \ + -mno-mmx \ + -DEFI_FUNCTION_WRAPPER \ + -DGNU_EFI_USE_MS_ABI +endif # ARCH_X86_64 + +ifneq ($(ARCH_IA32),) +efi_cflags += \ + -mno-sse \ + -mno-mmx +endif # ARCH_IA32 + +efi_ldflags = \ + $(EFI_LDFLAGS) \ + -T $(EFI_LDS_DIR)/elf_$(EFI_ARCH)_efi.lds \ + -shared \ + -Bsymbolic \ + -nostdlib \ + -znocombreloc \ + -L $(EFI_LIB_DIR) \ + $(EFI_LDS_DIR)/crt0-efi-$(EFI_ARCH).o + +# Aarch64 and ARM32 don't have an EFI capable objcopy. Use 'binary' instead, +# and add required symbols manually. +ifneq ($(ARCH_AARCH64),) +efi_ldflags += --defsym=EFI_SUBSYSTEM=0xa +EFI_FORMAT = -O binary +else +EFI_FORMAT = --target=efi-app-$(EFI_ARCH) +endif # ARCH_AARCH64 +endif # HAVE_GNUEFI +endif # ENABLE_EFI + +# ------------------------------------------------------------------------------ +systemd_boot_headers = \ + src/boot/efi/util.h \ + src/boot/efi/console.h \ + src/boot/efi/graphics.h \ + src/boot/efi/pefile.h \ + src/boot/efi/measure.h \ + src/boot/efi/disk.h + +systemd_boot_sources = \ + src/boot/efi/util.c \ + src/boot/efi/console.c \ + src/boot/efi/graphics.c \ + src/boot/efi/pefile.c \ + src/boot/efi/disk.c \ + src/boot/efi/measure.c \ + src/boot/efi/boot.c + +EXTRA_DIST += $(systemd_boot_sources) $(systemd_boot_headers) + +systemd_boot_objects = $(addprefix $(top_builddir)/,$(systemd_boot_sources:.c=.o)) +systemd_boot_solib = $(top_builddir)/src/boot/efi/systemd_boot.so +systemd_boot = systemd-boot$(EFI_MACHINE_TYPE_NAME).efi + +ifneq ($(ENABLE_EFI),) +ifneq ($(HAVE_GNUEFI),) +bootlib_DATA = $(systemd_boot) + +$(outdir)/%.o: $(top_srcdir)/src/boot/efi/%.c $(addprefix $(top_srcdir)/,$(systemd_boot_headers)) + @$(MKDIR_P) $(top_builddir)/src/boot/efi/ + $(AM_V_CC)$(EFI_CC) $(efi_cppflags) $(efi_cflags) -c $< -o $@ + +$(systemd_boot_solib): $(systemd_boot_objects) + $(AM_V_CCLD)$(LD) $(efi_ldflags) $(systemd_boot_objects) \ + -o $@ -lefi -lgnuefi $(shell $(CC) -print-libgcc-file-name); \ + nm -D -u $@ | grep ' U ' && exit 1 || : + +$(systemd_boot): $(systemd_boot_solib) + $(AM_V_GEN)$(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic \ + -j .dynsym -j .rel -j .rela -j .reloc $(EFI_FORMAT) $< $@ +endif # HAVE_GNUEFI +endif # ENABLE_EFI + +CLEANFILES += $(systemd_boot_objects) $(systemd_boot_solib) $(systemd_boot) + +# ------------------------------------------------------------------------------ +stub_headers = \ + src/boot/efi/util.h \ + src/boot/efi/pefile.h \ + src/boot/efi/disk.h \ + src/boot/efi/graphics.h \ + src/boot/efi/splash.h \ + src/boot/efi/measure.h \ + src/boot/efi/linux.h + +stub_sources = \ + src/boot/efi/util.c \ + src/boot/efi/pefile.c \ + src/boot/efi/disk.c \ + src/boot/efi/graphics.c \ + src/boot/efi/splash.c \ + src/boot/efi/linux.c \ + src/boot/efi/measure.c \ + src/boot/efi/stub.c + +EXTRA_DIST += \ + $(stub_sources) \ + $(stub_headers) \ + test/splash.bmp + +stub_objects = $(addprefix $(top_builddir)/,$(stub_sources:.c=.o)) +stub_solib = $(top_builddir)/src/boot/efi/stub.so +stub = linux$(EFI_MACHINE_TYPE_NAME).efi.stub + +ifneq ($(ENABLE_EFI),) +ifneq ($(HAVE_GNUEFI),) +bootlib_DATA += $(stub) + +$(outdir)/%.o: $(top_srcdir)/src/boot/efi/%.c $(addprefix $(top_srcdir)/,$(stub_headers)) + @$(MKDIR_P) $(top_builddir)/src/boot/efi/ + $(AM_V_CC)$(EFI_CC) $(efi_cppflags) $(efi_cflags) -c $< -o $@ + +$(stub_solib): $(stub_objects) + $(AM_V_CCLD)$(LD) $(efi_ldflags) $(stub_objects) \ + -o $@ -lefi -lgnuefi $(shell $(CC) -print-libgcc-file-name); \ + nm -D -u $@ | grep ' U ' && exit 1 || : + +$(stub): $(stub_solib) + $(AM_V_GEN)$(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic \ + -j .dynsym -j .rel -j .rela -j .reloc $(EFI_FORMAT) $< $@ +endif # HAVE_GNUEFI +endif # ENABLE_EFI + +CLEANFILES += $(stub_objects) $(stub_solib) $(stub) + +# ------------------------------------------------------------------------------ +CLEANFILES += test-efi-disk.img + +test-efi-disk.img: $(systemd_boot) $(stub) test/test-efi-create-disk.sh + $(AM_V_GEN)test/test-efi-create-disk.sh + +test-efi: test-efi-disk.img + $(QEMU) -machine accel=kvm -m 1024 -bios $(QEMU_BIOS) -snapshot test-efi-disk.img + +EXTRA_DIST += test/test-efi-create-disk.sh + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-boot/systemd-boot/boot.c b/src/grp-boot/systemd-boot/boot.c new file mode 100644 index 0000000000..9dfaed6d46 --- /dev/null +++ b/src/grp-boot/systemd-boot/boot.c @@ -0,0 +1,1857 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2012-2015 Kay Sievers <kay@vrfy.org> + * Copyright (C) 2012-2015 Harald Hoyer <harald@redhat.com> + */ + +#include <efi.h> +#include <efilib.h> + +#include "console.h" +#include "disk.h" +#include "graphics.h" +#include "linux.h" +#include "measure.h" +#include "pefile.h" +#include "util.h" + +#ifndef EFI_OS_INDICATIONS_BOOT_TO_FW_UI +#define EFI_OS_INDICATIONS_BOOT_TO_FW_UI 0x0000000000000001ULL +#endif + +/* magic string to find in the binary image */ +static const char __attribute__((used)) magic[] = "#### LoaderInfo: systemd-boot " VERSION " ####"; + +static const EFI_GUID global_guid = EFI_GLOBAL_VARIABLE; + +enum loader_type { + LOADER_UNDEFINED, + LOADER_EFI, + LOADER_LINUX +}; + +typedef struct { + CHAR16 *file; + CHAR16 *title_show; + CHAR16 *title; + CHAR16 *version; + CHAR16 *machine_id; + EFI_HANDLE *device; + enum loader_type type; + CHAR16 *loader; + CHAR16 *options; + CHAR16 key; + EFI_STATUS (*call)(VOID); + BOOLEAN no_autoselect; + BOOLEAN non_unique; +} ConfigEntry; + +typedef struct { + ConfigEntry **entries; + UINTN entry_count; + INTN idx_default; + INTN idx_default_efivar; + UINTN timeout_sec; + UINTN timeout_sec_config; + INTN timeout_sec_efivar; + CHAR16 *entry_default_pattern; + CHAR16 *entry_oneshot; + CHAR16 *options_edit; + BOOLEAN no_editor; +} Config; + +static VOID cursor_left(UINTN *cursor, UINTN *first) { + if ((*cursor) > 0) + (*cursor)--; + else if ((*first) > 0) + (*first)--; +} + +static VOID cursor_right(UINTN *cursor, UINTN *first, UINTN x_max, UINTN len) { + if ((*cursor)+1 < x_max) + (*cursor)++; + else if ((*first) + (*cursor) < len) + (*first)++; +} + +static BOOLEAN line_edit(CHAR16 *line_in, CHAR16 **line_out, UINTN x_max, UINTN y_pos) { + CHAR16 *line; + UINTN size; + UINTN len; + UINTN first; + CHAR16 *print; + UINTN cursor; + UINTN clear; + BOOLEAN exit; + BOOLEAN enter; + + if (!line_in) + line_in = L""; + size = StrLen(line_in) + 1024; + line = AllocatePool(size * sizeof(CHAR16)); + StrCpy(line, line_in); + len = StrLen(line); + print = AllocatePool((x_max+1) * sizeof(CHAR16)); + + uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, TRUE); + + first = 0; + cursor = 0; + clear = 0; + enter = FALSE; + exit = FALSE; + while (!exit) { + EFI_STATUS err; + UINT64 key; + UINTN i; + + i = len - first; + if (i >= x_max-1) + i = x_max-1; + CopyMem(print, line + first, i * sizeof(CHAR16)); + while (clear > 0 && i < x_max-1) { + clear--; + print[i++] = ' '; + } + print[i] = '\0'; + + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_pos); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, print); + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); + + err = console_key_read(&key, TRUE); + if (EFI_ERROR(err)) + continue; + + switch (key) { + case KEYPRESS(0, SCAN_ESC, 0): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'c'): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'g'): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('c')): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('g')): + exit = TRUE; + break; + + case KEYPRESS(0, SCAN_HOME, 0): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'a'): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('a')): + /* beginning-of-line */ + cursor = 0; + first = 0; + continue; + + case KEYPRESS(0, SCAN_END, 0): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'e'): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('e')): + /* end-of-line */ + cursor = len - first; + if (cursor+1 >= x_max) { + cursor = x_max-1; + first = len - (x_max-1); + } + continue; + + case KEYPRESS(0, SCAN_DOWN, 0): + case KEYPRESS(EFI_ALT_PRESSED, 0, 'f'): + case KEYPRESS(EFI_CONTROL_PRESSED, SCAN_RIGHT, 0): + /* forward-word */ + while (line[first + cursor] && line[first + cursor] == ' ') + cursor_right(&cursor, &first, x_max, len); + while (line[first + cursor] && line[first + cursor] != ' ') + cursor_right(&cursor, &first, x_max, len); + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); + continue; + + case KEYPRESS(0, SCAN_UP, 0): + case KEYPRESS(EFI_ALT_PRESSED, 0, 'b'): + case KEYPRESS(EFI_CONTROL_PRESSED, SCAN_LEFT, 0): + /* backward-word */ + if ((first + cursor) > 0 && line[first + cursor-1] == ' ') { + cursor_left(&cursor, &first); + while ((first + cursor) > 0 && line[first + cursor] == ' ') + cursor_left(&cursor, &first); + } + while ((first + cursor) > 0 && line[first + cursor-1] != ' ') + cursor_left(&cursor, &first); + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); + continue; + + case KEYPRESS(0, SCAN_RIGHT, 0): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'f'): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('f')): + /* forward-char */ + if (first + cursor == len) + continue; + cursor_right(&cursor, &first, x_max, len); + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); + continue; + + case KEYPRESS(0, SCAN_LEFT, 0): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'b'): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('b')): + /* backward-char */ + cursor_left(&cursor, &first); + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); + continue; + + case KEYPRESS(EFI_ALT_PRESSED, 0, 'd'): + /* kill-word */ + clear = 0; + for (i = first + cursor; i < len && line[i] == ' '; i++) + clear++; + for (; i < len && line[i] != ' '; i++) + clear++; + + for (i = first + cursor; i + clear < len; i++) + line[i] = line[i + clear]; + len -= clear; + line[len] = '\0'; + continue; + + case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'w'): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('w')): + case KEYPRESS(EFI_ALT_PRESSED, 0, CHAR_BACKSPACE): + /* backward-kill-word */ + clear = 0; + if ((first + cursor) > 0 && line[first + cursor-1] == ' ') { + cursor_left(&cursor, &first); + clear++; + while ((first + cursor) > 0 && line[first + cursor] == ' ') { + cursor_left(&cursor, &first); + clear++; + } + } + while ((first + cursor) > 0 && line[first + cursor-1] != ' ') { + cursor_left(&cursor, &first); + clear++; + } + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); + + for (i = first + cursor; i + clear < len; i++) + line[i] = line[i + clear]; + len -= clear; + line[len] = '\0'; + continue; + + case KEYPRESS(0, SCAN_DELETE, 0): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'd'): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('d')): + if (len == 0) + continue; + if (first + cursor == len) + continue; + for (i = first + cursor; i < len; i++) + line[i] = line[i+1]; + clear = 1; + len--; + continue; + + case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'k'): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('k')): + /* kill-line */ + line[first + cursor] = '\0'; + clear = len - (first + cursor); + len = first + cursor; + continue; + + case KEYPRESS(0, 0, CHAR_LINEFEED): + case KEYPRESS(0, 0, CHAR_CARRIAGE_RETURN): + if (StrCmp(line, line_in) != 0) { + *line_out = line; + line = NULL; + } + enter = TRUE; + exit = TRUE; + break; + + case KEYPRESS(0, 0, CHAR_BACKSPACE): + if (len == 0) + continue; + if (first == 0 && cursor == 0) + continue; + for (i = first + cursor-1; i < len; i++) + line[i] = line[i+1]; + clear = 1; + len--; + if (cursor > 0) + cursor--; + if (cursor > 0 || first == 0) + continue; + /* show full line if it fits */ + if (len < x_max) { + cursor = first; + first = 0; + continue; + } + /* jump left to see what we delete */ + if (first > 10) { + first -= 10; + cursor = 10; + } else { + cursor = first; + first = 0; + } + continue; + + case KEYPRESS(0, 0, ' ') ... KEYPRESS(0, 0, '~'): + case KEYPRESS(0, 0, 0x80) ... KEYPRESS(0, 0, 0xffff): + if (len+1 == size) + continue; + for (i = len; i > first + cursor; i--) + line[i] = line[i-1]; + line[first + cursor] = KEYCHAR(key); + len++; + line[len] = '\0'; + if (cursor+1 < x_max) + cursor++; + else if (first + cursor < len) + first++; + continue; + } + } + + uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, FALSE); + FreePool(print); + FreePool(line); + return enter; +} + +static UINTN entry_lookup_key(Config *config, UINTN start, CHAR16 key) { + UINTN i; + + if (key == 0) + return -1; + + /* select entry by number key */ + if (key >= '1' && key <= '9') { + i = key - '0'; + if (i > config->entry_count) + i = config->entry_count; + return i-1; + } + + /* find matching key in config entries */ + for (i = start; i < config->entry_count; i++) + if (config->entries[i]->key == key) + return i; + + for (i = 0; i < start; i++) + if (config->entries[i]->key == key) + return i; + + return -1; +} + +static VOID print_status(Config *config, CHAR16 *loaded_image_path) { + UINT64 key; + UINTN i; + CHAR16 *s; + CHAR8 *b; + UINTN x; + UINTN y; + UINTN size; + + uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); + uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut); + + Print(L"systemd-boot version: " VERSION "\n"); + Print(L"architecture: " EFI_MACHINE_TYPE_NAME "\n"); + Print(L"loaded image: %s\n", loaded_image_path); + Print(L"UEFI specification: %d.%02d\n", ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff); + Print(L"firmware vendor: %s\n", ST->FirmwareVendor); + Print(L"firmware version: %d.%02d\n", ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff); + + if (uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, ST->ConOut->Mode->Mode, &x, &y) == EFI_SUCCESS) + Print(L"console size: %d x %d\n", x, y); + + if (efivar_get_raw(&global_guid, L"SecureBoot", &b, &size) == EFI_SUCCESS) { + Print(L"SecureBoot: %s\n", yes_no(*b > 0)); + FreePool(b); + } + + if (efivar_get_raw(&global_guid, L"SetupMode", &b, &size) == EFI_SUCCESS) { + Print(L"SetupMode: %s\n", *b > 0 ? L"setup" : L"user"); + FreePool(b); + } + + if (efivar_get_raw(&global_guid, L"OsIndicationsSupported", &b, &size) == EFI_SUCCESS) { + Print(L"OsIndicationsSupported: %d\n", (UINT64)*b); + FreePool(b); + } + Print(L"\n"); + + Print(L"timeout: %d\n", config->timeout_sec); + if (config->timeout_sec_efivar >= 0) + Print(L"timeout (EFI var): %d\n", config->timeout_sec_efivar); + Print(L"timeout (config): %d\n", config->timeout_sec_config); + if (config->entry_default_pattern) + Print(L"default pattern: '%s'\n", config->entry_default_pattern); + Print(L"editor: %s\n", yes_no(!config->no_editor)); + Print(L"\n"); + + Print(L"config entry count: %d\n", config->entry_count); + Print(L"entry selected idx: %d\n", config->idx_default); + if (config->idx_default_efivar >= 0) + Print(L"entry EFI var idx: %d\n", config->idx_default_efivar); + Print(L"\n"); + + if (efivar_get_int(L"LoaderConfigTimeout", &i) == EFI_SUCCESS) + Print(L"LoaderConfigTimeout: %d\n", i); + if (config->entry_oneshot) + Print(L"LoaderEntryOneShot: %s\n", config->entry_oneshot); + if (efivar_get(L"LoaderDevicePartUUID", &s) == EFI_SUCCESS) { + Print(L"LoaderDevicePartUUID: %s\n", s); + FreePool(s); + } + if (efivar_get(L"LoaderEntryDefault", &s) == EFI_SUCCESS) { + Print(L"LoaderEntryDefault: %s\n", s); + FreePool(s); + } + + Print(L"\n--- press key ---\n\n"); + console_key_read(&key, TRUE); + + for (i = 0; i < config->entry_count; i++) { + ConfigEntry *entry; + + if (key == KEYPRESS(0, SCAN_ESC, 0) || key == KEYPRESS(0, 0, 'q')) + break; + + entry = config->entries[i]; + Print(L"config entry: %d/%d\n", i+1, config->entry_count); + if (entry->file) + Print(L"file '%s'\n", entry->file); + Print(L"title show '%s'\n", entry->title_show); + if (entry->title) + Print(L"title '%s'\n", entry->title); + if (entry->version) + Print(L"version '%s'\n", entry->version); + if (entry->machine_id) + Print(L"machine-id '%s'\n", entry->machine_id); + if (entry->device) { + EFI_DEVICE_PATH *device_path; + CHAR16 *str; + + device_path = DevicePathFromHandle(entry->device); + if (device_path) { + str = DevicePathToStr(device_path); + Print(L"device handle '%s'\n", str); + FreePool(str); + } + } + if (entry->loader) + Print(L"loader '%s'\n", entry->loader); + if (entry->options) + Print(L"options '%s'\n", entry->options); + Print(L"auto-select %s\n", yes_no(!entry->no_autoselect)); + if (entry->call) + Print(L"internal call yes\n"); + + Print(L"\n--- press key ---\n\n"); + console_key_read(&key, TRUE); + } + + uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut); +} + +static BOOLEAN menu_run(Config *config, ConfigEntry **chosen_entry, CHAR16 *loaded_image_path) { + EFI_STATUS err; + UINTN visible_max; + UINTN idx_highlight; + UINTN idx_highlight_prev; + UINTN idx_first; + UINTN idx_last; + BOOLEAN refresh; + BOOLEAN highlight; + UINTN i; + UINTN line_width; + CHAR16 **lines; + UINTN x_start; + UINTN y_start; + UINTN x_max; + UINTN y_max; + CHAR16 *status; + CHAR16 *clearline; + INTN timeout_remain; + INT16 idx; + BOOLEAN exit = FALSE; + BOOLEAN run = TRUE; + BOOLEAN wait = FALSE; + + graphics_mode(FALSE); + uefi_call_wrapper(ST->ConIn->Reset, 2, ST->ConIn, FALSE); + uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, FALSE); + uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); + + /* draw a single character to make ClearScreen work on some firmware */ + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L" "); + uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut); + + err = uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, ST->ConOut->Mode->Mode, &x_max, &y_max); + if (EFI_ERROR(err)) { + x_max = 80; + y_max = 25; + } + + /* we check 10 times per second for a keystroke */ + if (config->timeout_sec > 0) + timeout_remain = config->timeout_sec * 10; + else + timeout_remain = -1; + + idx_highlight = config->idx_default; + idx_highlight_prev = 0; + + visible_max = y_max - 2; + + if ((UINTN)config->idx_default >= visible_max) + idx_first = config->idx_default-1; + else + idx_first = 0; + + idx_last = idx_first + visible_max-1; + + refresh = TRUE; + highlight = FALSE; + + /* length of the longest entry */ + line_width = 5; + for (i = 0; i < config->entry_count; i++) { + UINTN entry_len; + + entry_len = StrLen(config->entries[i]->title_show); + if (line_width < entry_len) + line_width = entry_len; + } + if (line_width > x_max-6) + line_width = x_max-6; + + /* offsets to center the entries on the screen */ + x_start = (x_max - (line_width)) / 2; + if (config->entry_count < visible_max) + y_start = ((visible_max - config->entry_count) / 2) + 1; + else + y_start = 0; + + /* menu entries title lines */ + lines = AllocatePool(sizeof(CHAR16 *) * config->entry_count); + for (i = 0; i < config->entry_count; i++) { + UINTN j, k; + + lines[i] = AllocatePool(((x_max+1) * sizeof(CHAR16))); + for (j = 0; j < x_start; j++) + lines[i][j] = ' '; + + for (k = 0; config->entries[i]->title_show[k] != '\0' && j < x_max; j++, k++) + lines[i][j] = config->entries[i]->title_show[k]; + + for (; j < x_max; j++) + lines[i][j] = ' '; + lines[i][x_max] = '\0'; + } + + status = NULL; + clearline = AllocatePool((x_max+1) * sizeof(CHAR16)); + for (i = 0; i < x_max; i++) + clearline[i] = ' '; + clearline[i] = 0; + + while (!exit) { + UINT64 key; + + if (refresh) { + for (i = 0; i < config->entry_count; i++) { + if (i < idx_first || i > idx_last) + continue; + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_start + i - idx_first); + if (i == idx_highlight) + uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, + EFI_BLACK|EFI_BACKGROUND_LIGHTGRAY); + else + uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, + EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, lines[i]); + if ((INTN)i == config->idx_default_efivar) { + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, x_start-3, y_start + i - idx_first); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"=>"); + } + } + refresh = FALSE; + } else if (highlight) { + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_start + idx_highlight_prev - idx_first); + uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, lines[idx_highlight_prev]); + if ((INTN)idx_highlight_prev == config->idx_default_efivar) { + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, x_start-3, y_start + idx_highlight_prev - idx_first); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"=>"); + } + + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_start + idx_highlight - idx_first); + uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_BLACK|EFI_BACKGROUND_LIGHTGRAY); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, lines[idx_highlight]); + if ((INTN)idx_highlight == config->idx_default_efivar) { + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, x_start-3, y_start + idx_highlight - idx_first); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"=>"); + } + highlight = FALSE; + } + + if (timeout_remain > 0) { + FreePool(status); + status = PoolPrint(L"Boot in %d sec.", (timeout_remain + 5) / 10); + } + + /* print status at last line of screen */ + if (status) { + UINTN len; + UINTN x; + + /* center line */ + len = StrLen(status); + if (len < x_max) + x = (x_max - len) / 2; + else + x = 0; + uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline + (x_max - x)); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, status); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1 + x + len); + } + + err = console_key_read(&key, wait); + if (EFI_ERROR(err)) { + /* timeout reached */ + if (timeout_remain == 0) { + exit = TRUE; + break; + } + + /* sleep and update status */ + if (timeout_remain > 0) { + uefi_call_wrapper(BS->Stall, 1, 100 * 1000); + timeout_remain--; + continue; + } + + /* timeout disabled, wait for next key */ + wait = TRUE; + continue; + } + + timeout_remain = -1; + + /* clear status after keystroke */ + if (status) { + FreePool(status); + status = NULL; + uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1); + } + + idx_highlight_prev = idx_highlight; + + switch (key) { + case KEYPRESS(0, SCAN_UP, 0): + case KEYPRESS(0, 0, 'k'): + if (idx_highlight > 0) + idx_highlight--; + break; + + case KEYPRESS(0, SCAN_DOWN, 0): + case KEYPRESS(0, 0, 'j'): + if (idx_highlight < config->entry_count-1) + idx_highlight++; + break; + + case KEYPRESS(0, SCAN_HOME, 0): + case KEYPRESS(EFI_ALT_PRESSED, 0, '<'): + if (idx_highlight > 0) { + refresh = TRUE; + idx_highlight = 0; + } + break; + + case KEYPRESS(0, SCAN_END, 0): + case KEYPRESS(EFI_ALT_PRESSED, 0, '>'): + if (idx_highlight < config->entry_count-1) { + refresh = TRUE; + idx_highlight = config->entry_count-1; + } + break; + + case KEYPRESS(0, SCAN_PAGE_UP, 0): + if (idx_highlight > visible_max) + idx_highlight -= visible_max; + else + idx_highlight = 0; + break; + + case KEYPRESS(0, SCAN_PAGE_DOWN, 0): + idx_highlight += visible_max; + if (idx_highlight > config->entry_count-1) + idx_highlight = config->entry_count-1; + break; + + case KEYPRESS(0, 0, CHAR_LINEFEED): + case KEYPRESS(0, 0, CHAR_CARRIAGE_RETURN): + exit = TRUE; + break; + + case KEYPRESS(0, SCAN_F1, 0): + case KEYPRESS(0, 0, 'h'): + case KEYPRESS(0, 0, '?'): + status = StrDuplicate(L"(d)efault, (t/T)timeout, (e)dit, (v)ersion (Q)uit (P)rint (h)elp"); + break; + + case KEYPRESS(0, 0, 'Q'): + exit = TRUE; + run = FALSE; + break; + + case KEYPRESS(0, 0, 'd'): + if (config->idx_default_efivar != (INTN)idx_highlight) { + /* store the selected entry in a persistent EFI variable */ + efivar_set(L"LoaderEntryDefault", config->entries[idx_highlight]->file, TRUE); + config->idx_default_efivar = idx_highlight; + status = StrDuplicate(L"Default boot entry selected."); + } else { + /* clear the default entry EFI variable */ + efivar_set(L"LoaderEntryDefault", NULL, TRUE); + config->idx_default_efivar = -1; + status = StrDuplicate(L"Default boot entry cleared."); + } + refresh = TRUE; + break; + + case KEYPRESS(0, 0, '-'): + case KEYPRESS(0, 0, 'T'): + if (config->timeout_sec_efivar > 0) { + config->timeout_sec_efivar--; + efivar_set_int(L"LoaderConfigTimeout", config->timeout_sec_efivar, TRUE); + if (config->timeout_sec_efivar > 0) + status = PoolPrint(L"Menu timeout set to %d sec.", config->timeout_sec_efivar); + else + status = StrDuplicate(L"Menu disabled. Hold down key at bootup to show menu."); + } else if (config->timeout_sec_efivar <= 0){ + config->timeout_sec_efivar = -1; + efivar_set(L"LoaderConfigTimeout", NULL, TRUE); + if (config->timeout_sec_config > 0) + status = PoolPrint(L"Menu timeout of %d sec is defined by configuration file.", + config->timeout_sec_config); + else + status = StrDuplicate(L"Menu disabled. Hold down key at bootup to show menu."); + } + break; + + case KEYPRESS(0, 0, '+'): + case KEYPRESS(0, 0, 't'): + if (config->timeout_sec_efivar == -1 && config->timeout_sec_config == 0) + config->timeout_sec_efivar++; + config->timeout_sec_efivar++; + efivar_set_int(L"LoaderConfigTimeout", config->timeout_sec_efivar, TRUE); + if (config->timeout_sec_efivar > 0) + status = PoolPrint(L"Menu timeout set to %d sec.", + config->timeout_sec_efivar); + else + status = StrDuplicate(L"Menu disabled. Hold down key at bootup to show menu."); + break; + + case KEYPRESS(0, 0, 'e'): + /* only the options of configured entries can be edited */ + if (config->no_editor || config->entries[idx_highlight]->type == LOADER_UNDEFINED) + break; + uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1); + if (line_edit(config->entries[idx_highlight]->options, &config->options_edit, x_max-1, y_max-1)) + exit = TRUE; + uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1); + uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1); + break; + + case KEYPRESS(0, 0, 'v'): + status = PoolPrint(L"systemd-boot " VERSION " (" EFI_MACHINE_TYPE_NAME "), UEFI Specification %d.%02d, Vendor %s %d.%02d", + ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff, + ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff); + break; + + case KEYPRESS(0, 0, 'P'): + print_status(config, loaded_image_path); + refresh = TRUE; + break; + + case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'l'): + case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('l')): + refresh = TRUE; + break; + + default: + /* jump with a hotkey directly to a matching entry */ + idx = entry_lookup_key(config, idx_highlight+1, KEYCHAR(key)); + if (idx < 0) + break; + idx_highlight = idx; + refresh = TRUE; + } + + if (idx_highlight > idx_last) { + idx_last = idx_highlight; + idx_first = 1 + idx_highlight - visible_max; + refresh = TRUE; + } else if (idx_highlight < idx_first) { + idx_first = idx_highlight; + idx_last = idx_highlight + visible_max-1; + refresh = TRUE; + } + + if (!refresh && idx_highlight != idx_highlight_prev) + highlight = TRUE; + } + + *chosen_entry = config->entries[idx_highlight]; + + for (i = 0; i < config->entry_count; i++) + FreePool(lines[i]); + FreePool(lines); + FreePool(clearline); + + uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_WHITE|EFI_BACKGROUND_BLACK); + uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut); + return run; +} + +static VOID config_add_entry(Config *config, ConfigEntry *entry) { + if ((config->entry_count & 15) == 0) { + UINTN i; + + i = config->entry_count + 16; + if (config->entry_count == 0) + config->entries = AllocatePool(sizeof(VOID *) * i); + else + config->entries = ReallocatePool(config->entries, + sizeof(VOID *) * config->entry_count, sizeof(VOID *) * i); + } + config->entries[config->entry_count++] = entry; +} + +static VOID config_entry_free(ConfigEntry *entry) { + FreePool(entry->title_show); + FreePool(entry->title); + FreePool(entry->machine_id); + FreePool(entry->loader); + FreePool(entry->options); +} + +static BOOLEAN is_digit(CHAR16 c) { + return (c >= '0') && (c <= '9'); +} + +static UINTN c_order(CHAR16 c) { + if (c == '\0') + return 0; + if (is_digit(c)) + return 0; + else if ((c >= 'a') && (c <= 'z')) + return c; + else + return c + 0x10000; +} + +static INTN str_verscmp(CHAR16 *s1, CHAR16 *s2) { + CHAR16 *os1 = s1; + CHAR16 *os2 = s2; + + while (*s1 || *s2) { + INTN first; + + while ((*s1 && !is_digit(*s1)) || (*s2 && !is_digit(*s2))) { + INTN order; + + order = c_order(*s1) - c_order(*s2); + if (order) + return order; + s1++; + s2++; + } + + while (*s1 == '0') + s1++; + while (*s2 == '0') + s2++; + + first = 0; + while (is_digit(*s1) && is_digit(*s2)) { + if (first == 0) + first = *s1 - *s2; + s1++; + s2++; + } + + if (is_digit(*s1)) + return 1; + if (is_digit(*s2)) + return -1; + + if (first) + return first; + } + + return StrCmp(os1, os2); +} + +static CHAR8 *line_get_key_value(CHAR8 *content, CHAR8 *sep, UINTN *pos, CHAR8 **key_ret, CHAR8 **value_ret) { + CHAR8 *line; + UINTN linelen; + CHAR8 *value; + +skip: + line = content + *pos; + if (*line == '\0') + return NULL; + + linelen = 0; + while (line[linelen] && !strchra((CHAR8 *)"\n\r", line[linelen])) + linelen++; + + /* move pos to next line */ + *pos += linelen; + if (content[*pos]) + (*pos)++; + + /* empty line */ + if (linelen == 0) + goto skip; + + /* terminate line */ + line[linelen] = '\0'; + + /* remove leading whitespace */ + while (strchra((CHAR8 *)" \t", *line)) { + line++; + linelen--; + } + + /* remove trailing whitespace */ + while (linelen > 0 && strchra(sep, line[linelen-1])) + linelen--; + line[linelen] = '\0'; + + if (*line == '#') + goto skip; + + /* split key/value */ + value = line; + while (*value && !strchra(sep, *value)) + value++; + if (*value == '\0') + goto skip; + *value = '\0'; + value++; + while (*value && strchra(sep, *value)) + value++; + + /* unquote */ + if (value[0] == '\"' && line[linelen-1] == '\"') { + value++; + line[linelen-1] = '\0'; + } + + *key_ret = line; + *value_ret = value; + return line; +} + +static VOID config_defaults_load_from_file(Config *config, CHAR8 *content) { + CHAR8 *line; + UINTN pos = 0; + CHAR8 *key, *value; + + line = content; + while ((line = line_get_key_value(content, (CHAR8 *)" \t", &pos, &key, &value))) { + if (strcmpa((CHAR8 *)"timeout", key) == 0) { + CHAR16 *s; + + s = stra_to_str(value); + config->timeout_sec_config = Atoi(s); + config->timeout_sec = config->timeout_sec_config; + FreePool(s); + continue; + } + + if (strcmpa((CHAR8 *)"default", key) == 0) { + FreePool(config->entry_default_pattern); + config->entry_default_pattern = stra_to_str(value); + StrLwr(config->entry_default_pattern); + continue; + } + + if (strcmpa((CHAR8 *)"editor", key) == 0) { + BOOLEAN on; + + if (EFI_ERROR(parse_boolean(value, &on))) + continue; + config->no_editor = !on; + } + } +} + +static VOID config_entry_add_from_file(Config *config, EFI_HANDLE *device, CHAR16 *file, CHAR8 *content, CHAR16 *loaded_image_path) { + ConfigEntry *entry; + CHAR8 *line; + UINTN pos = 0; + CHAR8 *key, *value; + UINTN len; + CHAR16 *initrd = NULL; + + entry = AllocateZeroPool(sizeof(ConfigEntry)); + + line = content; + while ((line = line_get_key_value(content, (CHAR8 *)" \t", &pos, &key, &value))) { + if (strcmpa((CHAR8 *)"title", key) == 0) { + FreePool(entry->title); + entry->title = stra_to_str(value); + continue; + } + + if (strcmpa((CHAR8 *)"version", key) == 0) { + FreePool(entry->version); + entry->version = stra_to_str(value); + continue; + } + + if (strcmpa((CHAR8 *)"machine-id", key) == 0) { + FreePool(entry->machine_id); + entry->machine_id = stra_to_str(value); + continue; + } + + if (strcmpa((CHAR8 *)"linux", key) == 0) { + FreePool(entry->loader); + entry->type = LOADER_LINUX; + entry->loader = stra_to_path(value); + entry->key = 'l'; + continue; + } + + if (strcmpa((CHAR8 *)"efi", key) == 0) { + entry->type = LOADER_EFI; + FreePool(entry->loader); + entry->loader = stra_to_path(value); + + /* do not add an entry for ourselves */ + if (StriCmp(entry->loader, loaded_image_path) == 0) { + entry->type = LOADER_UNDEFINED; + break; + } + continue; + } + + if (strcmpa((CHAR8 *)"architecture", key) == 0) { + /* do not add an entry for an EFI image of architecture not matching with that of the image */ + if (strcmpa((CHAR8 *)EFI_MACHINE_TYPE_NAME, value) != 0) { + entry->type = LOADER_UNDEFINED; + break; + } + continue; + } + + if (strcmpa((CHAR8 *)"initrd", key) == 0) { + CHAR16 *new; + + new = stra_to_path(value); + if (initrd) { + CHAR16 *s; + + s = PoolPrint(L"%s initrd=%s", initrd, new); + FreePool(initrd); + initrd = s; + } else + initrd = PoolPrint(L"initrd=%s", new); + FreePool(new); + continue; + } + + if (strcmpa((CHAR8 *)"options", key) == 0) { + CHAR16 *new; + + new = stra_to_str(value); + if (entry->options) { + CHAR16 *s; + + s = PoolPrint(L"%s %s", entry->options, new); + FreePool(entry->options); + entry->options = s; + } else { + entry->options = new; + new = NULL; + } + FreePool(new); + continue; + } + } + + if (entry->type == LOADER_UNDEFINED) { + config_entry_free(entry); + FreePool(initrd); + FreePool(entry); + return; + } + + /* add initrd= to options */ + if (entry->type == LOADER_LINUX && initrd) { + if (entry->options) { + CHAR16 *s; + + s = PoolPrint(L"%s %s", initrd, entry->options); + FreePool(entry->options); + entry->options = s; + } else { + entry->options = initrd; + initrd = NULL; + } + } + FreePool(initrd); + + entry->device = device; + entry->file = StrDuplicate(file); + len = StrLen(entry->file); + /* remove ".conf" */ + if (len > 5) + entry->file[len - 5] = '\0'; + StrLwr(entry->file); + + config_add_entry(config, entry); +} + +static VOID config_load_defaults(Config *config, EFI_FILE *root_dir) { + CHAR8 *content = NULL; + UINTN sec; + UINTN len; + EFI_STATUS err; + + len = file_read(root_dir, L"\\loader\\loader.conf", 0, 0, &content); + if (len > 0) + config_defaults_load_from_file(config, content); + FreePool(content); + + err = efivar_get_int(L"LoaderConfigTimeout", &sec); + if (!EFI_ERROR(err)) { + config->timeout_sec_efivar = sec; + config->timeout_sec = sec; + } else + config->timeout_sec_efivar = -1; +} + +static VOID config_load_entries(Config *config, EFI_HANDLE *device, EFI_FILE *root_dir, CHAR16 *loaded_image_path) { + EFI_FILE_HANDLE entries_dir; + EFI_STATUS err; + + err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &entries_dir, L"\\loader\\entries", EFI_FILE_MODE_READ, 0ULL); + if (!EFI_ERROR(err)) { + for (;;) { + CHAR16 buf[256]; + UINTN bufsize; + EFI_FILE_INFO *f; + CHAR8 *content = NULL; + UINTN len; + + bufsize = sizeof(buf); + err = uefi_call_wrapper(entries_dir->Read, 3, entries_dir, &bufsize, buf); + if (bufsize == 0 || EFI_ERROR(err)) + break; + + f = (EFI_FILE_INFO *) buf; + if (f->FileName[0] == '.') + continue; + if (f->Attribute & EFI_FILE_DIRECTORY) + continue; + + len = StrLen(f->FileName); + if (len < 6) + continue; + if (StriCmp(f->FileName + len - 5, L".conf") != 0) + continue; + if (StrnCmp(f->FileName, L"auto-", 5) == 0) + continue; + + len = file_read(entries_dir, f->FileName, 0, 0, &content); + if (len > 0) + config_entry_add_from_file(config, device, f->FileName, content, loaded_image_path); + FreePool(content); + } + uefi_call_wrapper(entries_dir->Close, 1, entries_dir); + } +} + +static VOID config_sort_entries(Config *config) { + UINTN i; + + for (i = 1; i < config->entry_count; i++) { + BOOLEAN more; + UINTN k; + + more = FALSE; + for (k = 0; k < config->entry_count - i; k++) { + ConfigEntry *entry; + + if (str_verscmp(config->entries[k]->file, config->entries[k+1]->file) <= 0) + continue; + entry = config->entries[k]; + config->entries[k] = config->entries[k+1]; + config->entries[k+1] = entry; + more = TRUE; + } + if (!more) + break; + } +} + +static VOID config_default_entry_select(Config *config) { + CHAR16 *var; + EFI_STATUS err; + UINTN i; + + /* + * The EFI variable to specify a boot entry for the next, and only the + * next reboot. The variable is always cleared directly after it is read. + */ + err = efivar_get(L"LoaderEntryOneShot", &var); + if (!EFI_ERROR(err)) { + BOOLEAN found = FALSE; + + for (i = 0; i < config->entry_count; i++) { + if (StrCmp(config->entries[i]->file, var) == 0) { + config->idx_default = i; + found = TRUE; + break; + } + } + + config->entry_oneshot = StrDuplicate(var); + efivar_set(L"LoaderEntryOneShot", NULL, TRUE); + FreePool(var); + if (found) + return; + } + + /* + * The EFI variable to select the default boot entry overrides the + * configured pattern. The variable can be set and cleared by pressing + * the 'd' key in the loader selection menu, the entry is marked with + * an '*'. + */ + err = efivar_get(L"LoaderEntryDefault", &var); + if (!EFI_ERROR(err)) { + BOOLEAN found = FALSE; + + for (i = 0; i < config->entry_count; i++) { + if (StrCmp(config->entries[i]->file, var) == 0) { + config->idx_default = i; + config->idx_default_efivar = i; + found = TRUE; + break; + } + } + FreePool(var); + if (found) + return; + } + config->idx_default_efivar = -1; + + if (config->entry_count == 0) + return; + + /* + * Match the pattern from the end of the list to the start, find last + * entry (largest number) matching the given pattern. + */ + if (config->entry_default_pattern) { + i = config->entry_count; + while (i--) { + if (config->entries[i]->no_autoselect) + continue; + if (MetaiMatch(config->entries[i]->file, config->entry_default_pattern)) { + config->idx_default = i; + return; + } + } + } + + /* select the last suitable entry */ + i = config->entry_count; + while (i--) { + if (config->entries[i]->no_autoselect) + continue; + config->idx_default = i; + return; + } + + /* no entry found */ + config->idx_default = -1; +} + +/* generate a unique title, avoiding non-distinguishable menu entries */ +static VOID config_title_generate(Config *config) { + UINTN i, k; + BOOLEAN unique; + + /* set title */ + for (i = 0; i < config->entry_count; i++) { + CHAR16 *title; + + FreePool(config->entries[i]->title_show); + title = config->entries[i]->title; + if (!title) + title = config->entries[i]->file; + config->entries[i]->title_show = StrDuplicate(title); + } + + unique = TRUE; + for (i = 0; i < config->entry_count; i++) { + for (k = 0; k < config->entry_count; k++) { + if (i == k) + continue; + if (StrCmp(config->entries[i]->title_show, config->entries[k]->title_show) != 0) + continue; + + unique = FALSE; + config->entries[i]->non_unique = TRUE; + config->entries[k]->non_unique = TRUE; + } + } + if (unique) + return; + + /* add version to non-unique titles */ + for (i = 0; i < config->entry_count; i++) { + CHAR16 *s; + + if (!config->entries[i]->non_unique) + continue; + if (!config->entries[i]->version) + continue; + + s = PoolPrint(L"%s (%s)", config->entries[i]->title_show, config->entries[i]->version); + FreePool(config->entries[i]->title_show); + config->entries[i]->title_show = s; + config->entries[i]->non_unique = FALSE; + } + + unique = TRUE; + for (i = 0; i < config->entry_count; i++) { + for (k = 0; k < config->entry_count; k++) { + if (i == k) + continue; + if (StrCmp(config->entries[i]->title_show, config->entries[k]->title_show) != 0) + continue; + + unique = FALSE; + config->entries[i]->non_unique = TRUE; + config->entries[k]->non_unique = TRUE; + } + } + if (unique) + return; + + /* add machine-id to non-unique titles */ + for (i = 0; i < config->entry_count; i++) { + CHAR16 *s; + CHAR16 *m; + + if (!config->entries[i]->non_unique) + continue; + if (!config->entries[i]->machine_id) + continue; + + m = StrDuplicate(config->entries[i]->machine_id); + m[8] = '\0'; + s = PoolPrint(L"%s (%s)", config->entries[i]->title_show, m); + FreePool(config->entries[i]->title_show); + config->entries[i]->title_show = s; + config->entries[i]->non_unique = FALSE; + FreePool(m); + } + + unique = TRUE; + for (i = 0; i < config->entry_count; i++) { + for (k = 0; k < config->entry_count; k++) { + if (i == k) + continue; + if (StrCmp(config->entries[i]->title_show, config->entries[k]->title_show) != 0) + continue; + + unique = FALSE; + config->entries[i]->non_unique = TRUE; + config->entries[k]->non_unique = TRUE; + } + } + if (unique) + return; + + /* add file name to non-unique titles */ + for (i = 0; i < config->entry_count; i++) { + CHAR16 *s; + + if (!config->entries[i]->non_unique) + continue; + s = PoolPrint(L"%s (%s)", config->entries[i]->title_show, config->entries[i]->file); + FreePool(config->entries[i]->title_show); + config->entries[i]->title_show = s; + config->entries[i]->non_unique = FALSE; + } +} + +static BOOLEAN config_entry_add_call(Config *config, CHAR16 *title, EFI_STATUS (*call)(VOID)) { + ConfigEntry *entry; + + entry = AllocateZeroPool(sizeof(ConfigEntry)); + entry->title = StrDuplicate(title); + entry->call = call; + entry->no_autoselect = TRUE; + config_add_entry(config, entry); + return TRUE; +} + +static ConfigEntry *config_entry_add_loader(Config *config, EFI_HANDLE *device, + enum loader_type type,CHAR16 *file, CHAR16 key, CHAR16 *title, CHAR16 *loader) { + ConfigEntry *entry; + + entry = AllocateZeroPool(sizeof(ConfigEntry)); + entry->type = type; + entry->title = StrDuplicate(title); + entry->device = device; + entry->loader = StrDuplicate(loader); + entry->file = StrDuplicate(file); + StrLwr(entry->file); + entry->key = key; + config_add_entry(config, entry); + + return entry; +} + +static BOOLEAN config_entry_add_loader_auto(Config *config, EFI_HANDLE *device, EFI_FILE *root_dir, CHAR16 *loaded_image_path, + CHAR16 *file, CHAR16 key, CHAR16 *title, CHAR16 *loader) { + EFI_FILE_HANDLE handle; + ConfigEntry *entry; + EFI_STATUS err; + + /* do not add an entry for ourselves */ + if (loaded_image_path && StriCmp(loader, loaded_image_path) == 0) + return FALSE; + + /* check existence */ + err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &handle, loader, EFI_FILE_MODE_READ, 0ULL); + if (EFI_ERROR(err)) + return FALSE; + uefi_call_wrapper(handle->Close, 1, handle); + + entry = config_entry_add_loader(config, device, LOADER_UNDEFINED, file, key, title, loader); + if (!entry) + return FALSE; + + /* do not boot right away into auto-detected entries */ + entry->no_autoselect = TRUE; + + return TRUE; +} + +static VOID config_entry_add_osx(Config *config) { + EFI_STATUS err; + UINTN handle_count = 0; + EFI_HANDLE *handles = NULL; + + err = LibLocateHandle(ByProtocol, &FileSystemProtocol, NULL, &handle_count, &handles); + if (!EFI_ERROR(err)) { + UINTN i; + + for (i = 0; i < handle_count; i++) { + EFI_FILE *root; + BOOLEAN found; + + root = LibOpenRoot(handles[i]); + if (!root) + continue; + found = config_entry_add_loader_auto(config, handles[i], root, NULL, L"auto-osx", 'a', L"OS X", + L"\\System\\Library\\CoreServices\\boot.efi"); + uefi_call_wrapper(root->Close, 1, root); + if (found) + break; + } + + FreePool(handles); + } +} + +static VOID config_entry_add_linux( Config *config, EFI_LOADED_IMAGE *loaded_image, EFI_FILE *root_dir) { + EFI_FILE_HANDLE linux_dir; + EFI_STATUS err; + ConfigEntry *entry; + + err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &linux_dir, L"\\EFI\\Linux", EFI_FILE_MODE_READ, 0ULL); + if (!EFI_ERROR(err)) { + for (;;) { + CHAR16 buf[256]; + UINTN bufsize; + EFI_FILE_INFO *f; + CHAR8 *sections[] = { + (UINT8 *)".osrel", + (UINT8 *)".cmdline", + NULL + }; + UINTN offs[ELEMENTSOF(sections)-1] = {}; + UINTN szs[ELEMENTSOF(sections)-1] = {}; + UINTN addrs[ELEMENTSOF(sections)-1] = {}; + CHAR8 *content = NULL; + UINTN len; + CHAR8 *line; + UINTN pos = 0; + CHAR8 *key, *value; + CHAR16 *os_name = NULL; + CHAR16 *os_id = NULL; + CHAR16 *os_version = NULL; + CHAR16 *os_build = NULL; + + bufsize = sizeof(buf); + err = uefi_call_wrapper(linux_dir->Read, 3, linux_dir, &bufsize, buf); + if (bufsize == 0 || EFI_ERROR(err)) + break; + + f = (EFI_FILE_INFO *) buf; + if (f->FileName[0] == '.') + continue; + if (f->Attribute & EFI_FILE_DIRECTORY) + continue; + len = StrLen(f->FileName); + if (len < 5) + continue; + if (StriCmp(f->FileName + len - 4, L".efi") != 0) + continue; + + /* look for .osrel and .cmdline sections in the .efi binary */ + err = pefile_locate_sections(linux_dir, f->FileName, sections, addrs, offs, szs); + if (EFI_ERROR(err)) + continue; + + len = file_read(linux_dir, f->FileName, offs[0], szs[0], &content); + if (len <= 0) + continue; + + /* read properties from the embedded os-release file */ + line = content; + while ((line = line_get_key_value(content, (CHAR8 *)"=", &pos, &key, &value))) { + if (strcmpa((CHAR8 *)"PRETTY_NAME", key) == 0) { + FreePool(os_name); + os_name = stra_to_str(value); + continue; + } + + if (strcmpa((CHAR8 *)"ID", key) == 0) { + FreePool(os_id); + os_id = stra_to_str(value); + continue; + } + + if (strcmpa((CHAR8 *)"VERSION_ID", key) == 0) { + FreePool(os_version); + os_version = stra_to_str(value); + continue; + } + + if (strcmpa((CHAR8 *)"BUILD_ID", key) == 0) { + FreePool(os_build); + os_build = stra_to_str(value); + continue; + } + } + + if (os_name && os_id && (os_version || os_build)) { + CHAR16 *conf; + CHAR16 *path; + CHAR16 *cmdline; + + conf = PoolPrint(L"%s-%s", os_id, os_version ? : os_build); + path = PoolPrint(L"\\EFI\\Linux\\%s", f->FileName); + entry = config_entry_add_loader(config, loaded_image->DeviceHandle, LOADER_LINUX, conf, 'l', os_name, path); + + FreePool(content); + /* read the embedded cmdline file */ + len = file_read(linux_dir, f->FileName, offs[1], szs[1] - 1 , &content); + if (len > 0) { + cmdline = stra_to_str(content); + entry->options = cmdline; + cmdline = NULL; + } + FreePool(cmdline); + FreePool(conf); + FreePool(path); + } + + FreePool(os_name); + FreePool(os_id); + FreePool(os_version); + FreePool(os_build); + FreePool(content); + } + uefi_call_wrapper(linux_dir->Close, 1, linux_dir); + } +} + +static EFI_STATUS image_start(EFI_HANDLE parent_image, const Config *config, const ConfigEntry *entry) { + EFI_HANDLE image; + EFI_DEVICE_PATH *path; + CHAR16 *options; + EFI_STATUS err; + + path = FileDevicePath(entry->device, entry->loader); + if (!path) { + Print(L"Error getting device path."); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + return EFI_INVALID_PARAMETER; + } + + err = uefi_call_wrapper(BS->LoadImage, 6, FALSE, parent_image, path, NULL, 0, &image); + if (EFI_ERROR(err)) { + Print(L"Error loading %s: %r", entry->loader, err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + goto out; + } + + if (config->options_edit) + options = config->options_edit; + else if (entry->options) + options = entry->options; + else + options = NULL; + if (options) { + EFI_LOADED_IMAGE *loaded_image; + + err = uefi_call_wrapper(BS->OpenProtocol, 6, image, &LoadedImageProtocol, (VOID **)&loaded_image, + parent_image, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); + if (EFI_ERROR(err)) { + Print(L"Error getting LoadedImageProtocol handle: %r", err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + goto out_unload; + } + loaded_image->LoadOptions = options; + loaded_image->LoadOptionsSize = (StrLen(loaded_image->LoadOptions)+1) * sizeof(CHAR16); + +#ifdef SD_BOOT_LOG_TPM + /* Try to log any options to the TPM, escpecially to catch manually edited options */ + err = tpm_log_event(SD_TPM_PCR, + (EFI_PHYSICAL_ADDRESS) loaded_image->LoadOptions, + loaded_image->LoadOptionsSize, loaded_image->LoadOptions); + if (EFI_ERROR(err)) { + Print(L"Unable to add image options measurement: %r", err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + return err; + } +#endif + } + + efivar_set_time_usec(L"LoaderTimeExecUSec", 0); + err = uefi_call_wrapper(BS->StartImage, 3, image, NULL, NULL); +out_unload: + uefi_call_wrapper(BS->UnloadImage, 1, image); +out: + FreePool(path); + return err; +} + +static EFI_STATUS reboot_into_firmware(VOID) { + CHAR8 *b; + UINTN size; + UINT64 osind; + EFI_STATUS err; + + osind = EFI_OS_INDICATIONS_BOOT_TO_FW_UI; + + err = efivar_get_raw(&global_guid, L"OsIndications", &b, &size); + if (!EFI_ERROR(err)) + osind |= (UINT64)*b; + FreePool(b); + + err = efivar_set_raw(&global_guid, L"OsIndications", (CHAR8 *)&osind, sizeof(UINT64), TRUE); + if (EFI_ERROR(err)) + return err; + + err = uefi_call_wrapper(RT->ResetSystem, 4, EfiResetCold, EFI_SUCCESS, 0, NULL); + Print(L"Error calling ResetSystem: %r", err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + return err; +} + +static VOID config_free(Config *config) { + UINTN i; + + for (i = 0; i < config->entry_count; i++) + config_entry_free(config->entries[i]); + FreePool(config->entries); + FreePool(config->entry_default_pattern); + FreePool(config->options_edit); + FreePool(config->entry_oneshot); +} + +EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) { + CHAR16 *s; + CHAR8 *b; + UINTN size; + EFI_LOADED_IMAGE *loaded_image; + EFI_FILE *root_dir; + CHAR16 *loaded_image_path; + EFI_STATUS err; + Config config; + UINT64 init_usec; + BOOLEAN menu = FALSE; + CHAR16 uuid[37]; + + InitializeLib(image, sys_table); + init_usec = time_usec(); + efivar_set_time_usec(L"LoaderTimeInitUSec", init_usec); + efivar_set(L"LoaderInfo", L"systemd-boot " VERSION, FALSE); + s = PoolPrint(L"%s %d.%02d", ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff); + efivar_set(L"LoaderFirmwareInfo", s, FALSE); + FreePool(s); + s = PoolPrint(L"UEFI %d.%02d", ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff); + efivar_set(L"LoaderFirmwareType", s, FALSE); + FreePool(s); + + err = uefi_call_wrapper(BS->OpenProtocol, 6, image, &LoadedImageProtocol, (VOID **)&loaded_image, + image, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); + if (EFI_ERROR(err)) { + Print(L"Error getting a LoadedImageProtocol handle: %r ", err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + return err; + } + + /* export the device path this image is started from */ + if (disk_get_part_uuid(loaded_image->DeviceHandle, uuid) == EFI_SUCCESS) + efivar_set(L"LoaderDevicePartUUID", uuid, FALSE); + + root_dir = LibOpenRoot(loaded_image->DeviceHandle); + if (!root_dir) { + Print(L"Unable to open root directory: %r ", err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + return EFI_LOAD_ERROR; + } + + + /* the filesystem path to this image, to prevent adding ourselves to the menu */ + loaded_image_path = DevicePathToStr(loaded_image->FilePath); + efivar_set(L"LoaderImageIdentifier", loaded_image_path, FALSE); + + ZeroMem(&config, sizeof(Config)); + config_load_defaults(&config, root_dir); + + /* scan /EFI/Linux/ directory */ + config_entry_add_linux(&config, loaded_image, root_dir); + + /* scan /loader/entries/\*.conf files */ + config_load_entries(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path); + + /* sort entries after version number */ + config_sort_entries(&config); + + /* if we find some well-known loaders, add them to the end of the list */ + config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path, + L"auto-windows", 'w', L"Windows Boot Manager", L"\\EFI\\Microsoft\\Boot\\bootmgfw.efi"); + config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path, + L"auto-efi-shell", 's', L"EFI Shell", L"\\shell" EFI_MACHINE_TYPE_NAME ".efi"); + config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path, + L"auto-efi-default", '\0', L"EFI Default Loader", L"\\EFI\\Boot\\boot" EFI_MACHINE_TYPE_NAME ".efi"); + config_entry_add_osx(&config); + + if (efivar_get_raw(&global_guid, L"OsIndicationsSupported", &b, &size) == EFI_SUCCESS) { + UINT64 osind = (UINT64)*b; + + if (osind & EFI_OS_INDICATIONS_BOOT_TO_FW_UI) + config_entry_add_call(&config, L"Reboot Into Firmware Interface", reboot_into_firmware); + FreePool(b); + } + + if (config.entry_count == 0) { + Print(L"No loader found. Configuration files in \\loader\\entries\\*.conf are needed."); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + goto out; + } + + config_title_generate(&config); + + /* select entry by configured pattern or EFI LoaderDefaultEntry= variable*/ + config_default_entry_select(&config); + + /* if no configured entry to select from was found, enable the menu */ + if (config.idx_default == -1) { + config.idx_default = 0; + if (config.timeout_sec == 0) + config.timeout_sec = 10; + } + + /* select entry or show menu when key is pressed or timeout is set */ + if (config.timeout_sec == 0) { + UINT64 key; + + err = console_key_read(&key, FALSE); + if (!EFI_ERROR(err)) { + INT16 idx; + + /* find matching key in config entries */ + idx = entry_lookup_key(&config, config.idx_default, KEYCHAR(key)); + if (idx >= 0) + config.idx_default = idx; + else + menu = TRUE; + } + } else + menu = TRUE; + + for (;;) { + ConfigEntry *entry; + + entry = config.entries[config.idx_default]; + if (menu) { + efivar_set_time_usec(L"LoaderTimeMenuUSec", 0); + uefi_call_wrapper(BS->SetWatchdogTimer, 4, 0, 0x10000, 0, NULL); + if (!menu_run(&config, &entry, loaded_image_path)) + break; + + /* run special entry like "reboot" */ + if (entry->call) { + entry->call(); + continue; + } + } + + /* export the selected boot entry to the system */ + efivar_set(L"LoaderEntrySelected", entry->file, FALSE); + + uefi_call_wrapper(BS->SetWatchdogTimer, 4, 5 * 60, 0x10000, 0, NULL); + err = image_start(image, &config, entry); + if (EFI_ERROR(err)) { + graphics_mode(FALSE); + Print(L"\nFailed to execute %s (%s): %r\n", entry->title, entry->loader, err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + goto out; + } + + menu = TRUE; + config.timeout_sec = 0; + } + err = EFI_SUCCESS; +out: + FreePool(loaded_image_path); + config_free(&config); + uefi_call_wrapper(root_dir->Close, 1, root_dir); + uefi_call_wrapper(BS->CloseProtocol, 4, image, &LoadedImageProtocol, image, NULL); + return err; +} diff --git a/src/grp-boot/systemd-boot/console.c b/src/grp-boot/systemd-boot/console.c new file mode 100644 index 0000000000..2b797c9a5f --- /dev/null +++ b/src/grp-boot/systemd-boot/console.c @@ -0,0 +1,135 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org> + * Copyright (C) 2012 Harald Hoyer <harald@redhat.com> + */ + +#include <efi.h> +#include <efilib.h> + +#include "console.h" +#include "util.h" + +#define EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID \ + { 0xdd9e7534, 0x7762, 0x4698, { 0x8c, 0x14, 0xf5, 0x85, 0x17, 0xa6, 0x25, 0xaa } } + +struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL; + +typedef EFI_STATUS (EFIAPI *EFI_INPUT_RESET_EX)( + struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, + BOOLEAN ExtendedVerification +); + +typedef UINT8 EFI_KEY_TOGGLE_STATE; + +typedef struct { + UINT32 KeyShiftState; + EFI_KEY_TOGGLE_STATE KeyToggleState; +} EFI_KEY_STATE; + +typedef struct { + EFI_INPUT_KEY Key; + EFI_KEY_STATE KeyState; +} EFI_KEY_DATA; + +typedef EFI_STATUS (EFIAPI *EFI_INPUT_READ_KEY_EX)( + struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, + EFI_KEY_DATA *KeyData +); + +typedef EFI_STATUS (EFIAPI *EFI_SET_STATE)( + struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, + EFI_KEY_TOGGLE_STATE *KeyToggleState +); + +typedef EFI_STATUS (EFIAPI *EFI_KEY_NOTIFY_FUNCTION)( + EFI_KEY_DATA *KeyData +); + +typedef EFI_STATUS (EFIAPI *EFI_REGISTER_KEYSTROKE_NOTIFY)( + struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, + EFI_KEY_DATA KeyData, + EFI_KEY_NOTIFY_FUNCTION KeyNotificationFunction, + VOID **NotifyHandle +); + +typedef EFI_STATUS (EFIAPI *EFI_UNREGISTER_KEYSTROKE_NOTIFY)( + struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *This, + VOID *NotificationHandle +); + +typedef struct _EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL { + EFI_INPUT_RESET_EX Reset; + EFI_INPUT_READ_KEY_EX ReadKeyStrokeEx; + EFI_EVENT WaitForKeyEx; + EFI_SET_STATE SetState; + EFI_REGISTER_KEYSTROKE_NOTIFY RegisterKeyNotify; + EFI_UNREGISTER_KEYSTROKE_NOTIFY UnregisterKeyNotify; +} EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL; + +EFI_STATUS console_key_read(UINT64 *key, BOOLEAN wait) { + EFI_GUID EfiSimpleTextInputExProtocolGuid = EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID; + static EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *TextInputEx; + static BOOLEAN checked; + UINTN index; + EFI_INPUT_KEY k; + EFI_STATUS err; + + if (!checked) { + err = LibLocateProtocol(&EfiSimpleTextInputExProtocolGuid, (VOID **)&TextInputEx); + if (EFI_ERROR(err)) + TextInputEx = NULL; + + checked = TRUE; + } + + /* wait until key is pressed */ + if (wait) + uefi_call_wrapper(BS->WaitForEvent, 3, 1, &ST->ConIn->WaitForKey, &index); + + if (TextInputEx) { + EFI_KEY_DATA keydata; + UINT64 keypress; + + err = uefi_call_wrapper(TextInputEx->ReadKeyStrokeEx, 2, TextInputEx, &keydata); + if (!EFI_ERROR(err)) { + UINT32 shift = 0; + + /* do not distinguish between left and right keys */ + if (keydata.KeyState.KeyShiftState & EFI_SHIFT_STATE_VALID) { + if (keydata.KeyState.KeyShiftState & (EFI_RIGHT_CONTROL_PRESSED|EFI_LEFT_CONTROL_PRESSED)) + shift |= EFI_CONTROL_PRESSED; + if (keydata.KeyState.KeyShiftState & (EFI_RIGHT_ALT_PRESSED|EFI_LEFT_ALT_PRESSED)) + shift |= EFI_ALT_PRESSED; + }; + + /* 32 bit modifier keys + 16 bit scan code + 16 bit unicode */ + keypress = KEYPRESS(shift, keydata.Key.ScanCode, keydata.Key.UnicodeChar); + if (keypress > 0) { + *key = keypress; + return 0; + } + } + } + + /* fallback for firmware which does not support SimpleTextInputExProtocol + * + * This is also called in case ReadKeyStrokeEx did not return a key, because + * some broken firmwares offer SimpleTextInputExProtocol, but never acually + * handle any key. */ + err = uefi_call_wrapper(ST->ConIn->ReadKeyStroke, 2, ST->ConIn, &k); + if (EFI_ERROR(err)) + return err; + + *key = KEYPRESS(0, k.ScanCode, k.UnicodeChar); + return 0; +} diff --git a/src/grp-boot/systemd-boot/console.h b/src/grp-boot/systemd-boot/console.h new file mode 100644 index 0000000000..3fe0ce5ec4 --- /dev/null +++ b/src/grp-boot/systemd-boot/console.h @@ -0,0 +1,32 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org> + * Copyright (C) 2012 Harald Hoyer <harald@redhat.com> + */ + +#ifndef __SDBOOT_CONSOLE_H +#define __SDBOOT_CONSOLE_H + +#define EFI_SHIFT_STATE_VALID 0x80000000 +#define EFI_RIGHT_CONTROL_PRESSED 0x00000004 +#define EFI_LEFT_CONTROL_PRESSED 0x00000008 +#define EFI_RIGHT_ALT_PRESSED 0x00000010 +#define EFI_LEFT_ALT_PRESSED 0x00000020 + +#define EFI_CONTROL_PRESSED (EFI_RIGHT_CONTROL_PRESSED|EFI_LEFT_CONTROL_PRESSED) +#define EFI_ALT_PRESSED (EFI_RIGHT_ALT_PRESSED|EFI_LEFT_ALT_PRESSED) +#define KEYPRESS(keys, scan, uni) ((((UINT64)keys) << 32) | ((scan) << 16) | (uni)) +#define KEYCHAR(k) ((k) & 0xffff) +#define CHAR_CTRL(c) ((c) - 'a' + 1) + +EFI_STATUS console_key_read(UINT64 *key, BOOLEAN wait); +#endif diff --git a/src/grp-boot/systemd-boot/disk.c b/src/grp-boot/systemd-boot/disk.c new file mode 100644 index 0000000000..3e3b5b224a --- /dev/null +++ b/src/grp-boot/systemd-boot/disk.c @@ -0,0 +1,49 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2015 Kay Sievers <kay@vrfy.org> + */ + +#include <efi.h> +#include <efilib.h> + +#include "util.h" + +EFI_STATUS disk_get_part_uuid(EFI_HANDLE *handle, CHAR16 uuid[37]) { + EFI_DEVICE_PATH *device_path; + EFI_STATUS r = EFI_NOT_FOUND; + + /* export the device path this image is started from */ + device_path = DevicePathFromHandle(handle); + if (device_path) { + EFI_DEVICE_PATH *path, *paths; + + paths = UnpackDevicePath(device_path); + for (path = paths; !IsDevicePathEnd(path); path = NextDevicePathNode(path)) { + HARDDRIVE_DEVICE_PATH *drive; + + if (DevicePathType(path) != MEDIA_DEVICE_PATH) + continue; + if (DevicePathSubType(path) != MEDIA_HARDDRIVE_DP) + continue; + drive = (HARDDRIVE_DEVICE_PATH *)path; + if (drive->SignatureType != SIGNATURE_TYPE_GUID) + continue; + + GuidToString(uuid, (EFI_GUID *)&drive->Signature); + r = EFI_SUCCESS; + break; + } + FreePool(paths); + } + + return r; +} diff --git a/src/grp-boot/systemd-boot/disk.h b/src/grp-boot/systemd-boot/disk.h new file mode 100644 index 0000000000..af91a9c674 --- /dev/null +++ b/src/grp-boot/systemd-boot/disk.h @@ -0,0 +1,19 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2015 Kay Sievers <kay@vrfy.org> + */ + +#ifndef __SDBOOT_DISK_H +#define __SDBOOT_DISK_H + +EFI_STATUS disk_get_part_uuid(EFI_HANDLE *handle, CHAR16 uuid[37]); +#endif diff --git a/src/grp-boot/systemd-boot/graphics.c b/src/grp-boot/systemd-boot/graphics.c new file mode 100644 index 0000000000..4854baf874 --- /dev/null +++ b/src/grp-boot/systemd-boot/graphics.c @@ -0,0 +1,88 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org> + * Copyright (C) 2012 Harald Hoyer <harald@redhat.com> + * Copyright (C) 2013 Intel Corporation + * Authored by Joonas Lahtinen <joonas.lahtinen@linux.intel.com> + */ + +#include <efi.h> +#include <efilib.h> + +#include "graphics.h" +#include "util.h" + +EFI_STATUS graphics_mode(BOOLEAN on) { + #define EFI_CONSOLE_CONTROL_PROTOCOL_GUID \ + { 0xf42f7782, 0x12e, 0x4c12, { 0x99, 0x56, 0x49, 0xf9, 0x43, 0x4, 0xf7, 0x21 } }; + + struct _EFI_CONSOLE_CONTROL_PROTOCOL; + + typedef enum { + EfiConsoleControlScreenText, + EfiConsoleControlScreenGraphics, + EfiConsoleControlScreenMaxValue, + } EFI_CONSOLE_CONTROL_SCREEN_MODE; + + typedef EFI_STATUS (EFIAPI *EFI_CONSOLE_CONTROL_PROTOCOL_GET_MODE)( + struct _EFI_CONSOLE_CONTROL_PROTOCOL *This, + EFI_CONSOLE_CONTROL_SCREEN_MODE *Mode, + BOOLEAN *UgaExists, + BOOLEAN *StdInLocked + ); + + typedef EFI_STATUS (EFIAPI *EFI_CONSOLE_CONTROL_PROTOCOL_SET_MODE)( + struct _EFI_CONSOLE_CONTROL_PROTOCOL *This, + EFI_CONSOLE_CONTROL_SCREEN_MODE Mode + ); + + typedef EFI_STATUS (EFIAPI *EFI_CONSOLE_CONTROL_PROTOCOL_LOCK_STD_IN)( + struct _EFI_CONSOLE_CONTROL_PROTOCOL *This, + CHAR16 *Password + ); + + typedef struct _EFI_CONSOLE_CONTROL_PROTOCOL { + EFI_CONSOLE_CONTROL_PROTOCOL_GET_MODE GetMode; + EFI_CONSOLE_CONTROL_PROTOCOL_SET_MODE SetMode; + EFI_CONSOLE_CONTROL_PROTOCOL_LOCK_STD_IN LockStdIn; + } EFI_CONSOLE_CONTROL_PROTOCOL; + + EFI_GUID ConsoleControlProtocolGuid = EFI_CONSOLE_CONTROL_PROTOCOL_GUID; + EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl = NULL; + EFI_CONSOLE_CONTROL_SCREEN_MODE new; + EFI_CONSOLE_CONTROL_SCREEN_MODE current; + BOOLEAN uga_exists; + BOOLEAN stdin_locked; + EFI_STATUS err; + + err = LibLocateProtocol(&ConsoleControlProtocolGuid, (VOID **)&ConsoleControl); + if (EFI_ERROR(err)) + /* console control protocol is nonstandard and might not exist. */ + return err == EFI_NOT_FOUND ? EFI_SUCCESS : err; + + /* check current mode */ + err = uefi_call_wrapper(ConsoleControl->GetMode, 4, ConsoleControl, ¤t, &uga_exists, &stdin_locked); + if (EFI_ERROR(err)) + return err; + + /* do not touch the mode */ + new = on ? EfiConsoleControlScreenGraphics : EfiConsoleControlScreenText; + if (new == current) + return EFI_SUCCESS; + + err = uefi_call_wrapper(ConsoleControl->SetMode, 2, ConsoleControl, new); + + /* some firmware enables the cursor when switching modes */ + uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, FALSE); + + return err; +} diff --git a/src/grp-boot/systemd-boot/graphics.h b/src/grp-boot/systemd-boot/graphics.h new file mode 100644 index 0000000000..cf48e647e7 --- /dev/null +++ b/src/grp-boot/systemd-boot/graphics.h @@ -0,0 +1,22 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org> + * Copyright (C) 2012 Harald Hoyer <harald@redhat.com> + * Copyright (C) 2013 Intel Corporation + * Authored by Joonas Lahtinen <joonas.lahtinen@linux.intel.com> + */ + +#ifndef __SDBOOT_GRAPHICS_H +#define __SDBOOT_GRAPHICS_H + +EFI_STATUS graphics_mode(BOOLEAN on); +#endif diff --git a/src/grp-boot/systemd-boot/linux.c b/src/grp-boot/systemd-boot/linux.c new file mode 100644 index 0000000000..0dc99a6c53 --- /dev/null +++ b/src/grp-boot/systemd-boot/linux.c @@ -0,0 +1,128 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2015 Kay Sievers <kay@vrfy.org> + */ + +#include <efi.h> +#include <efilib.h> + +#include "linux.h" +#include "util.h" + +#define SETUP_MAGIC 0x53726448 /* "HdrS" */ +struct SetupHeader { + UINT8 boot_sector[0x01f1]; + UINT8 setup_secs; + UINT16 root_flags; + UINT32 sys_size; + UINT16 ram_size; + UINT16 video_mode; + UINT16 root_dev; + UINT16 signature; + UINT16 jump; + UINT32 header; + UINT16 version; + UINT16 su_switch; + UINT16 setup_seg; + UINT16 start_sys; + UINT16 kernel_ver; + UINT8 loader_id; + UINT8 load_flags; + UINT16 movesize; + UINT32 code32_start; + UINT32 ramdisk_start; + UINT32 ramdisk_len; + UINT32 bootsect_kludge; + UINT16 heap_end; + UINT8 ext_loader_ver; + UINT8 ext_loader_type; + UINT32 cmd_line_ptr; + UINT32 ramdisk_max; + UINT32 kernel_alignment; + UINT8 relocatable_kernel; + UINT8 min_alignment; + UINT16 xloadflags; + UINT32 cmdline_size; + UINT32 hardware_subarch; + UINT64 hardware_subarch_data; + UINT32 payload_offset; + UINT32 payload_length; + UINT64 setup_data; + UINT64 pref_address; + UINT32 init_size; + UINT32 handover_offset; +} __attribute__((packed)); + +#ifdef __x86_64__ +typedef VOID(*handover_f)(VOID *image, EFI_SYSTEM_TABLE *table, struct SetupHeader *setup); +static inline VOID linux_efi_handover(EFI_HANDLE image, struct SetupHeader *setup) { + handover_f handover; + + asm volatile ("cli"); + handover = (handover_f)((UINTN)setup->code32_start + 512 + setup->handover_offset); + handover(image, ST, setup); +} +#else +typedef VOID(*handover_f)(VOID *image, EFI_SYSTEM_TABLE *table, struct SetupHeader *setup) __attribute__((regparm(0))); +static inline VOID linux_efi_handover(EFI_HANDLE image, struct SetupHeader *setup) { + handover_f handover; + + handover = (handover_f)((UINTN)setup->code32_start + setup->handover_offset); + handover(image, ST, setup); +} +#endif + +EFI_STATUS linux_exec(EFI_HANDLE *image, + CHAR8 *cmdline, UINTN cmdline_len, + UINTN linux_addr, + UINTN initrd_addr, UINTN initrd_size) { + struct SetupHeader *image_setup; + struct SetupHeader *boot_setup; + EFI_PHYSICAL_ADDRESS addr; + EFI_STATUS err; + + image_setup = (struct SetupHeader *)(linux_addr); + if (image_setup->signature != 0xAA55 || image_setup->header != SETUP_MAGIC) + return EFI_LOAD_ERROR; + + if (image_setup->version < 0x20b || !image_setup->relocatable_kernel) + return EFI_LOAD_ERROR; + + addr = 0x3fffffff; + err = uefi_call_wrapper(BS->AllocatePages, 4, AllocateMaxAddress, EfiLoaderData, + EFI_SIZE_TO_PAGES(0x4000), &addr); + if (EFI_ERROR(err)) + return err; + boot_setup = (struct SetupHeader *)(UINTN)addr; + ZeroMem(boot_setup, 0x4000); + CopyMem(boot_setup, image_setup, sizeof(struct SetupHeader)); + boot_setup->loader_id = 0xff; + + boot_setup->code32_start = (UINT32)linux_addr + (image_setup->setup_secs+1) * 512; + + if (cmdline) { + addr = 0xA0000; + err = uefi_call_wrapper(BS->AllocatePages, 4, AllocateMaxAddress, EfiLoaderData, + EFI_SIZE_TO_PAGES(cmdline_len + 1), &addr); + if (EFI_ERROR(err)) + return err; + CopyMem((VOID *)(UINTN)addr, cmdline, cmdline_len); + ((CHAR8 *)addr)[cmdline_len] = 0; + boot_setup->cmd_line_ptr = (UINT32)addr; + } + + boot_setup->ramdisk_start = (UINT32)initrd_addr; + boot_setup->ramdisk_len = (UINT32)initrd_size; + + linux_efi_handover(image, boot_setup); + return EFI_LOAD_ERROR; +} diff --git a/src/grp-boot/systemd-boot/linux.h b/src/grp-boot/systemd-boot/linux.h new file mode 100644 index 0000000000..d9e6ed7955 --- /dev/null +++ b/src/grp-boot/systemd-boot/linux.h @@ -0,0 +1,22 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2015 Kay Sievers <kay@vrfy.org> + */ + +#ifndef __SDBOOT_kernel_H +#define __SDBOOT_kernel_H + +EFI_STATUS linux_exec(EFI_HANDLE *image, + CHAR8 *cmdline, UINTN cmdline_size, + UINTN linux_addr, + UINTN initrd_addr, UINTN initrd_size); +#endif diff --git a/src/grp-boot/systemd-boot/measure.c b/src/grp-boot/systemd-boot/measure.c new file mode 100644 index 0000000000..42c7f477de --- /dev/null +++ b/src/grp-boot/systemd-boot/measure.c @@ -0,0 +1,335 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + */ + +#ifdef SD_BOOT_LOG_TPM + +#include <efi.h> +#include <efilib.h> + +#include "measure.h" + +#define EFI_TCG_PROTOCOL_GUID { 0xf541796d, 0xa62e, 0x4954, {0xa7, 0x75, 0x95, 0x84, 0xf6, 0x1b, 0x9c, 0xdd} } + +typedef struct _TCG_VERSION { + UINT8 Major; + UINT8 Minor; + UINT8 RevMajor; + UINT8 RevMinor; +} TCG_VERSION; + +typedef struct _TCG_BOOT_SERVICE_CAPABILITY { + UINT8 Size; + struct _TCG_VERSION StructureVersion; + struct _TCG_VERSION ProtocolSpecVersion; + UINT8 HashAlgorithmBitmap; + BOOLEAN TPMPresentFlag; + BOOLEAN TPMDeactivatedFlag; +} TCG_BOOT_SERVICE_CAPABILITY; + +typedef UINT32 TCG_ALGORITHM_ID; +#define TCG_ALG_SHA 0x00000004 // The SHA1 algorithm + +#define SHA1_DIGEST_SIZE 20 + +typedef struct _TCG_DIGEST { + UINT8 Digest[SHA1_DIGEST_SIZE]; +} TCG_DIGEST; + +#define EV_IPL 13 + +typedef struct _TCG_PCR_EVENT { + UINT32 PCRIndex; + UINT32 EventType; + struct _TCG_DIGEST digest; + UINT32 EventSize; + UINT8 Event[1]; +} TCG_PCR_EVENT; + +INTERFACE_DECL(_EFI_TCG); + +typedef EFI_STATUS(EFIAPI * EFI_TCG_STATUS_CHECK) (IN struct _EFI_TCG * This, + OUT struct _TCG_BOOT_SERVICE_CAPABILITY * ProtocolCapability, + OUT UINT32 * TCGFeatureFlags, + OUT EFI_PHYSICAL_ADDRESS * EventLogLocation, + OUT EFI_PHYSICAL_ADDRESS * EventLogLastEntry); + +typedef EFI_STATUS(EFIAPI * EFI_TCG_HASH_ALL) (IN struct _EFI_TCG * This, + IN UINT8 * HashData, + IN UINT64 HashDataLen, + IN TCG_ALGORITHM_ID AlgorithmId, + IN OUT UINT64 * HashedDataLen, IN OUT UINT8 ** HashedDataResult); + +typedef EFI_STATUS(EFIAPI * EFI_TCG_LOG_EVENT) (IN struct _EFI_TCG * This, + IN struct _TCG_PCR_EVENT * TCGLogData, + IN OUT UINT32 * EventNumber, IN UINT32 Flags); + +typedef EFI_STATUS(EFIAPI * EFI_TCG_PASS_THROUGH_TO_TPM) (IN struct _EFI_TCG * This, + IN UINT32 TpmInputParameterBlockSize, + IN UINT8 * TpmInputParameterBlock, + IN UINT32 TpmOutputParameterBlockSize, + IN UINT8 * TpmOutputParameterBlock); + +typedef EFI_STATUS(EFIAPI * EFI_TCG_HASH_LOG_EXTEND_EVENT) (IN struct _EFI_TCG * This, + IN EFI_PHYSICAL_ADDRESS HashData, + IN UINT64 HashDataLen, + IN TCG_ALGORITHM_ID AlgorithmId, + IN struct _TCG_PCR_EVENT * TCGLogData, + IN OUT UINT32 * EventNumber, + OUT EFI_PHYSICAL_ADDRESS * EventLogLastEntry); + +typedef struct _EFI_TCG { + EFI_TCG_STATUS_CHECK StatusCheck; + EFI_TCG_HASH_ALL HashAll; + EFI_TCG_LOG_EVENT LogEvent; + EFI_TCG_PASS_THROUGH_TO_TPM PassThroughToTPM; + EFI_TCG_HASH_LOG_EXTEND_EVENT HashLogExtendEvent; +} EFI_TCG; + +#define EFI_TCG2_PROTOCOL_GUID {0x607f766c, 0x7455, 0x42be, { 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f }} + +typedef struct tdEFI_TCG2_PROTOCOL EFI_TCG2_PROTOCOL; + +typedef struct tdEFI_TCG2_VERSION { + UINT8 Major; + UINT8 Minor; +} EFI_TCG2_VERSION; + +typedef UINT32 EFI_TCG2_EVENT_LOG_BITMAP; +typedef UINT32 EFI_TCG2_EVENT_LOG_FORMAT; +typedef UINT32 EFI_TCG2_EVENT_ALGORITHM_BITMAP; + +#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2 0x00000001 +#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_2 0x00000002 + +typedef struct tdEFI_TCG2_BOOT_SERVICE_CAPABILITY { + UINT8 Size; + EFI_TCG2_VERSION StructureVersion; + EFI_TCG2_VERSION ProtocolVersion; + EFI_TCG2_EVENT_ALGORITHM_BITMAP HashAlgorithmBitmap; + EFI_TCG2_EVENT_LOG_BITMAP SupportedEventLogs; + BOOLEAN TPMPresentFlag; + UINT16 MaxCommandSize; + UINT16 MaxResponseSize; + UINT32 ManufacturerID; + UINT32 NumberOfPCRBanks; + EFI_TCG2_EVENT_ALGORITHM_BITMAP ActivePcrBanks; +} EFI_TCG2_BOOT_SERVICE_CAPABILITY; + +#define EFI_TCG2_EVENT_HEADER_VERSION 1 + +typedef struct { + UINT32 HeaderSize; + UINT16 HeaderVersion; + UINT32 PCRIndex; + UINT32 EventType; +} EFI_TCG2_EVENT_HEADER; + +typedef struct tdEFI_TCG2_EVENT { + UINT32 Size; + EFI_TCG2_EVENT_HEADER Header; + UINT8 Event[1]; +} EFI_TCG2_EVENT; + +typedef EFI_STATUS(EFIAPI * EFI_TCG2_GET_CAPABILITY) (IN EFI_TCG2_PROTOCOL * This, + IN OUT EFI_TCG2_BOOT_SERVICE_CAPABILITY * ProtocolCapability); + +typedef EFI_STATUS(EFIAPI * EFI_TCG2_GET_EVENT_LOG) (IN EFI_TCG2_PROTOCOL * This, + IN EFI_TCG2_EVENT_LOG_FORMAT EventLogFormat, + OUT EFI_PHYSICAL_ADDRESS * EventLogLocation, + OUT EFI_PHYSICAL_ADDRESS * EventLogLastEntry, + OUT BOOLEAN * EventLogTruncated); + +typedef EFI_STATUS(EFIAPI * EFI_TCG2_HASH_LOG_EXTEND_EVENT) (IN EFI_TCG2_PROTOCOL * This, + IN UINT64 Flags, + IN EFI_PHYSICAL_ADDRESS DataToHash, + IN UINT64 DataToHashLen, IN EFI_TCG2_EVENT * EfiTcgEvent); + +typedef EFI_STATUS(EFIAPI * EFI_TCG2_SUBMIT_COMMAND) (IN EFI_TCG2_PROTOCOL * This, + IN UINT32 InputParameterBlockSize, + IN UINT8 * InputParameterBlock, + IN UINT32 OutputParameterBlockSize, IN UINT8 * OutputParameterBlock); + +typedef EFI_STATUS(EFIAPI * EFI_TCG2_GET_ACTIVE_PCR_BANKS) (IN EFI_TCG2_PROTOCOL * This, OUT UINT32 * ActivePcrBanks); +typedef EFI_STATUS(EFIAPI * EFI_TCG2_SET_ACTIVE_PCR_BANKS) (IN EFI_TCG2_PROTOCOL * This, IN UINT32 ActivePcrBanks); + +typedef EFI_STATUS(EFIAPI * EFI_TCG2_GET_RESULT_OF_SET_ACTIVE_PCR_BANKS) (IN EFI_TCG2_PROTOCOL * This, + OUT UINT32 * OperationPresent, OUT UINT32 * Response); + +typedef struct tdEFI_TCG2_PROTOCOL { + EFI_TCG2_GET_CAPABILITY GetCapability; + EFI_TCG2_GET_EVENT_LOG GetEventLog; + EFI_TCG2_HASH_LOG_EXTEND_EVENT HashLogExtendEvent; + EFI_TCG2_SUBMIT_COMMAND SubmitCommand; + EFI_TCG2_GET_ACTIVE_PCR_BANKS GetActivePcrBanks; + EFI_TCG2_SET_ACTIVE_PCR_BANKS SetActivePcrBanks; + EFI_TCG2_GET_RESULT_OF_SET_ACTIVE_PCR_BANKS GetResultOfSetActivePcrBanks; +} EFI_TCG2; + + +static EFI_STATUS tpm1_measure_to_pcr_and_event_log(const EFI_TCG *tcg, UINT32 pcrindex, const EFI_PHYSICAL_ADDRESS buffer, + UINTN buffer_size, const CHAR16 *description) { + EFI_STATUS status; + TCG_PCR_EVENT *tcg_event; + UINT32 event_number; + EFI_PHYSICAL_ADDRESS event_log_last; + UINTN desc_len; + + desc_len = (StrLen(description) + 1) * sizeof(CHAR16); + + tcg_event = AllocateZeroPool(desc_len + sizeof(TCG_PCR_EVENT)); + + if (tcg_event == NULL) + return EFI_OUT_OF_RESOURCES; + + tcg_event->EventSize = desc_len; + CopyMem((VOID *) & tcg_event->Event[0], (VOID *) description, desc_len); + + tcg_event->PCRIndex = pcrindex; + tcg_event->EventType = EV_IPL; + + event_number = 1; + status = uefi_call_wrapper(tcg->HashLogExtendEvent, 7, + tcg, buffer, buffer_size, TCG_ALG_SHA, tcg_event, &event_number, &event_log_last); + + if (EFI_ERROR(status)) + return status; + + uefi_call_wrapper(BS->FreePool, 1, tcg_event); + + return EFI_SUCCESS; +} + +/* + * According to TCG EFI Protocol Specification for TPM 2.0 family, + * all events generated after the invocation of EFI_TCG2_GET_EVENT_LOG + * shall be stored in an instance of an EFI_CONFIGURATION_TABLE aka + * EFI TCG 2.0 final events table. Hence, it is necessary to trigger the + * internal switch through calling get_event_log() in order to allow + * to retrieve the logs from OS runtime. + */ +static EFI_STATUS trigger_tcg2_final_events_table(const EFI_TCG2 *tcg) +{ + return uefi_call_wrapper(tcg->GetEventLog, 5, tcg, + EFI_TCG2_EVENT_LOG_FORMAT_TCG_2, NULL, + NULL, NULL); +} + +static EFI_STATUS tpm2_measure_to_pcr_and_event_log(const EFI_TCG2 *tcg, UINT32 pcrindex, const EFI_PHYSICAL_ADDRESS buffer, + UINT64 buffer_size, const CHAR16 *description) { + EFI_STATUS status; + EFI_TCG2_EVENT *tcg_event; + UINTN desc_len; + static BOOLEAN triggered = FALSE; + + if (triggered == FALSE) { + status = trigger_tcg2_final_events_table(tcg); + if (EFI_ERROR(status)) + return status; + + triggered = TRUE; + } + + desc_len = StrLen(description) * sizeof(CHAR16); + + tcg_event = AllocateZeroPool(sizeof(*tcg_event) - sizeof(tcg_event->Event) + desc_len + 1); + + if (tcg_event == NULL) + return EFI_OUT_OF_RESOURCES; + + tcg_event->Size = sizeof(EFI_TCG2_EVENT) - sizeof(tcg_event->Event) + desc_len + 1; + tcg_event->Header.HeaderSize = sizeof(EFI_TCG2_EVENT_HEADER); + tcg_event->Header.HeaderVersion = EFI_TCG2_EVENT_HEADER_VERSION; + tcg_event->Header.PCRIndex = pcrindex; + tcg_event->Header.EventType = EV_IPL; + + CopyMem((VOID *) tcg_event->Event, (VOID *) description, desc_len); + + status = uefi_call_wrapper(tcg->HashLogExtendEvent, 5, tcg, 0, buffer, buffer_size, tcg_event); + + uefi_call_wrapper(BS->FreePool, 1, tcg_event); + + if (EFI_ERROR(status)) + return status; + + return EFI_SUCCESS; +} + +static EFI_TCG * tcg1_interface_check(void) { + EFI_GUID tpm_guid = EFI_TCG_PROTOCOL_GUID; + EFI_STATUS status; + EFI_TCG *tcg; + TCG_BOOT_SERVICE_CAPABILITY capability; + UINT32 features; + EFI_PHYSICAL_ADDRESS event_log_location; + EFI_PHYSICAL_ADDRESS event_log_last_entry; + + status = LibLocateProtocol(&tpm_guid, (void **) &tcg); + + if (EFI_ERROR(status)) + return NULL; + + capability.Size = (UINT8) sizeof(capability); + status = uefi_call_wrapper(tcg->StatusCheck, 5, tcg, &capability, &features, &event_log_location, &event_log_last_entry); + + if (EFI_ERROR(status)) + return NULL; + + if (capability.TPMDeactivatedFlag) + return NULL; + + if (!capability.TPMPresentFlag) + return NULL; + + return tcg; +} + +static EFI_TCG2 * tcg2_interface_check(void) { + EFI_GUID tpm2_guid = EFI_TCG2_PROTOCOL_GUID; + EFI_STATUS status; + EFI_TCG2 *tcg; + EFI_TCG2_BOOT_SERVICE_CAPABILITY capability; + + status = LibLocateProtocol(&tpm2_guid, (void **) &tcg); + + if (EFI_ERROR(status)) + return NULL; + + capability.Size = (UINT8) sizeof(capability); + status = uefi_call_wrapper(tcg->GetCapability, 2, tcg, &capability); + + if (EFI_ERROR(status)) + return NULL; + + if (!capability.TPMPresentFlag) + return NULL; + + return tcg; +} + +EFI_STATUS tpm_log_event(UINT32 pcrindex, const EFI_PHYSICAL_ADDRESS buffer, UINTN buffer_size, const CHAR16 *description) { + EFI_TCG *tpm1; + EFI_TCG2 *tpm2; + + tpm2 = tcg2_interface_check(); + if (tpm2) + return tpm2_measure_to_pcr_and_event_log(tpm2, pcrindex, buffer, buffer_size, description); + + tpm1 = tcg1_interface_check(); + if (tpm1) + return tpm1_measure_to_pcr_and_event_log(tpm1, pcrindex, buffer, buffer_size, description); + + /* No active TPM found, so don't return an error */ + return EFI_SUCCESS; +} + +#endif diff --git a/src/grp-boot/systemd-boot/measure.h b/src/grp-boot/systemd-boot/measure.h new file mode 100644 index 0000000000..a2cfe817d0 --- /dev/null +++ b/src/grp-boot/systemd-boot/measure.h @@ -0,0 +1,21 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + */ +#ifndef __SDBOOT_MEASURE_H +#define __SDBOOT_MEASURE_H + +#ifndef SD_TPM_PCR +#define SD_TPM_PCR 8 +#endif + +EFI_STATUS tpm_log_event(UINT32 pcrindex, const EFI_PHYSICAL_ADDRESS buffer, UINTN buffer_size, const CHAR16 *description); +#endif diff --git a/src/grp-boot/systemd-boot/pefile.c b/src/grp-boot/systemd-boot/pefile.c new file mode 100644 index 0000000000..77fff77b69 --- /dev/null +++ b/src/grp-boot/systemd-boot/pefile.c @@ -0,0 +1,170 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2015 Kay Sievers <kay@vrfy.org> + */ + +#include <efi.h> +#include <efilib.h> + +#include "pefile.h" +#include "util.h" + +struct DosFileHeader { + UINT8 Magic[2]; + UINT16 LastSize; + UINT16 nBlocks; + UINT16 nReloc; + UINT16 HdrSize; + UINT16 MinAlloc; + UINT16 MaxAlloc; + UINT16 ss; + UINT16 sp; + UINT16 Checksum; + UINT16 ip; + UINT16 cs; + UINT16 RelocPos; + UINT16 nOverlay; + UINT16 reserved[4]; + UINT16 OEMId; + UINT16 OEMInfo; + UINT16 reserved2[10]; + UINT32 ExeHeader; +} __attribute__((packed)); + +#define PE_HEADER_MACHINE_I386 0x014c +#define PE_HEADER_MACHINE_X64 0x8664 +struct PeFileHeader { + UINT16 Machine; + UINT16 NumberOfSections; + UINT32 TimeDateStamp; + UINT32 PointerToSymbolTable; + UINT32 NumberOfSymbols; + UINT16 SizeOfOptionalHeader; + UINT16 Characteristics; +} __attribute__((packed)); + +struct PeSectionHeader { + UINT8 Name[8]; + UINT32 VirtualSize; + UINT32 VirtualAddress; + UINT32 SizeOfRawData; + UINT32 PointerToRawData; + UINT32 PointerToRelocations; + UINT32 PointerToLinenumbers; + UINT16 NumberOfRelocations; + UINT16 NumberOfLinenumbers; + UINT32 Characteristics; +} __attribute__((packed)); + + +EFI_STATUS pefile_locate_sections(EFI_FILE *dir, CHAR16 *path, CHAR8 **sections, UINTN *addrs, UINTN *offsets, UINTN *sizes) { + EFI_FILE_HANDLE handle; + struct DosFileHeader dos; + uint8_t magic[4]; + struct PeFileHeader pe; + UINTN len; + UINTN i; + EFI_STATUS err; + + err = uefi_call_wrapper(dir->Open, 5, dir, &handle, path, EFI_FILE_MODE_READ, 0ULL); + if (EFI_ERROR(err)) + return err; + + /* MS-DOS stub */ + len = sizeof(dos); + err = uefi_call_wrapper(handle->Read, 3, handle, &len, &dos); + if (EFI_ERROR(err)) + goto out; + if (len != sizeof(dos)) { + err = EFI_LOAD_ERROR; + goto out; + } + + if (CompareMem(dos.Magic, "MZ", 2) != 0) { + err = EFI_LOAD_ERROR; + goto out; + } + + err = uefi_call_wrapper(handle->SetPosition, 2, handle, dos.ExeHeader); + if (EFI_ERROR(err)) + goto out; + + /* PE header */ + len = sizeof(magic); + err = uefi_call_wrapper(handle->Read, 3, handle, &len, &magic); + if (EFI_ERROR(err)) + goto out; + if (len != sizeof(magic)) { + err = EFI_LOAD_ERROR; + goto out; + } + + if (CompareMem(magic, "PE\0\0", 2) != 0) { + err = EFI_LOAD_ERROR; + goto out; + } + + len = sizeof(pe); + err = uefi_call_wrapper(handle->Read, 3, handle, &len, &pe); + if (EFI_ERROR(err)) + goto out; + if (len != sizeof(pe)) { + err = EFI_LOAD_ERROR; + goto out; + } + + /* PE32+ Subsystem type */ + if (pe.Machine != PE_HEADER_MACHINE_X64 && + pe.Machine != PE_HEADER_MACHINE_I386) { + err = EFI_LOAD_ERROR; + goto out; + } + + if (pe.NumberOfSections > 96) { + err = EFI_LOAD_ERROR; + goto out; + } + + /* the sections start directly after the headers */ + err = uefi_call_wrapper(handle->SetPosition, 2, handle, dos.ExeHeader + sizeof(magic) + sizeof(pe) + pe.SizeOfOptionalHeader); + if (EFI_ERROR(err)) + goto out; + + for (i = 0; i < pe.NumberOfSections; i++) { + struct PeSectionHeader sect; + UINTN j; + + len = sizeof(sect); + err = uefi_call_wrapper(handle->Read, 3, handle, &len, §); + if (EFI_ERROR(err)) + goto out; + if (len != sizeof(sect)) { + err = EFI_LOAD_ERROR; + goto out; + } + for (j = 0; sections[j]; j++) { + if (CompareMem(sect.Name, sections[j], strlena(sections[j])) != 0) + continue; + + if (addrs) + addrs[j] = (UINTN)sect.VirtualAddress; + if (offsets) + offsets[j] = (UINTN)sect.PointerToRawData; + if (sizes) + sizes[j] = (UINTN)sect.VirtualSize; + } + } + +out: + uefi_call_wrapper(handle->Close, 1, handle); + return err; +} diff --git a/src/grp-boot/systemd-boot/pefile.h b/src/grp-boot/systemd-boot/pefile.h new file mode 100644 index 0000000000..2e445ede17 --- /dev/null +++ b/src/grp-boot/systemd-boot/pefile.h @@ -0,0 +1,20 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2015 Kay Sievers <kay@vrfy.org> + */ + +#ifndef __SDBOOT_PEFILE_H +#define __SDBOOT_PEFILE_H + +EFI_STATUS pefile_locate_sections(EFI_FILE *dir, CHAR16 *path, + CHAR8 **sections, UINTN *addrs, UINTN *offsets, UINTN *sizes); +#endif diff --git a/src/grp-boot/systemd-boot/splash.c b/src/grp-boot/systemd-boot/splash.c new file mode 100644 index 0000000000..c0ef7f64fe --- /dev/null +++ b/src/grp-boot/systemd-boot/splash.c @@ -0,0 +1,321 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org> + * Copyright (C) 2012 Harald Hoyer <harald@redhat.com> + */ + +#include <efi.h> +#include <efilib.h> + +#include "graphics.h" +#include "splash.h" +#include "util.h" + +struct bmp_file { + CHAR8 signature[2]; + UINT32 size; + UINT16 reserved[2]; + UINT32 offset; +} __attribute__((packed)); + +/* we require at least BITMAPINFOHEADER, later versions are + accepted, but their features ignored */ +struct bmp_dib { + UINT32 size; + UINT32 x; + UINT32 y; + UINT16 planes; + UINT16 depth; + UINT32 compression; + UINT32 image_size; + INT32 x_pixel_meter; + INT32 y_pixel_meter; + UINT32 colors_used; + UINT32 colors_important; +} __attribute__((packed)); + +struct bmp_map { + UINT8 blue; + UINT8 green; + UINT8 red; + UINT8 reserved; +} __attribute__((packed)); + +EFI_STATUS bmp_parse_header(UINT8 *bmp, UINTN size, struct bmp_dib **ret_dib, + struct bmp_map **ret_map, UINT8 **pixmap) { + struct bmp_file *file; + struct bmp_dib *dib; + struct bmp_map *map; + UINTN row_size; + + if (size < sizeof(struct bmp_file) + sizeof(struct bmp_dib)) + return EFI_INVALID_PARAMETER; + + /* check file header */ + file = (struct bmp_file *)bmp; + if (file->signature[0] != 'B' || file->signature[1] != 'M') + return EFI_INVALID_PARAMETER; + if (file->size != size) + return EFI_INVALID_PARAMETER; + if (file->size < file->offset) + return EFI_INVALID_PARAMETER; + + /* check device-independent bitmap */ + dib = (struct bmp_dib *)(bmp + sizeof(struct bmp_file)); + if (dib->size < sizeof(struct bmp_dib)) + return EFI_UNSUPPORTED; + + switch (dib->depth) { + case 1: + case 4: + case 8: + case 24: + if (dib->compression != 0) + return EFI_UNSUPPORTED; + + break; + + case 16: + case 32: + if (dib->compression != 0 && dib->compression != 3) + return EFI_UNSUPPORTED; + + break; + + default: + return EFI_UNSUPPORTED; + } + + row_size = ((UINTN) dib->depth * dib->x + 31) / 32 * 4; + if (file->size - file->offset < dib->y * row_size) + return EFI_INVALID_PARAMETER; + if (row_size * dib->y > 64 * 1024 * 1024) + return EFI_INVALID_PARAMETER; + + /* check color table */ + map = (struct bmp_map *)(bmp + sizeof(struct bmp_file) + dib->size); + if (file->offset < sizeof(struct bmp_file) + dib->size) + return EFI_INVALID_PARAMETER; + + if (file->offset > sizeof(struct bmp_file) + dib->size) { + UINT32 map_count; + UINTN map_size; + + if (dib->colors_used) + map_count = dib->colors_used; + else { + switch (dib->depth) { + case 1: + case 4: + case 8: + map_count = 1 << dib->depth; + break; + + default: + map_count = 0; + break; + } + } + + map_size = file->offset - (sizeof(struct bmp_file) + dib->size); + if (map_size != sizeof(struct bmp_map) * map_count) + return EFI_INVALID_PARAMETER; + } + + *ret_map = map; + *ret_dib = dib; + *pixmap = bmp + file->offset; + + return EFI_SUCCESS; +} + +static VOID pixel_blend(UINT32 *dst, const UINT32 source) { + UINT32 alpha, src, src_rb, src_g, dst_rb, dst_g, rb, g; + + alpha = (source & 0xff); + + /* convert src from RGBA to XRGB */ + src = source >> 8; + + /* decompose into RB and G components */ + src_rb = (src & 0xff00ff); + src_g = (src & 0x00ff00); + + dst_rb = (*dst & 0xff00ff); + dst_g = (*dst & 0x00ff00); + + /* blend */ + rb = ((((src_rb - dst_rb) * alpha + 0x800080) >> 8) + dst_rb) & 0xff00ff; + g = ((((src_g - dst_g) * alpha + 0x008000) >> 8) + dst_g) & 0x00ff00; + + *dst = (rb | g); +} + +EFI_STATUS bmp_to_blt(EFI_GRAPHICS_OUTPUT_BLT_PIXEL *buf, + struct bmp_dib *dib, struct bmp_map *map, + UINT8 *pixmap) { + UINT8 *in; + UINTN y; + + /* transform and copy pixels */ + in = pixmap; + for (y = 0; y < dib->y; y++) { + EFI_GRAPHICS_OUTPUT_BLT_PIXEL *out; + UINTN row_size; + UINTN x; + + out = &buf[(dib->y - y - 1) * dib->x]; + for (x = 0; x < dib->x; x++, in++, out++) { + switch (dib->depth) { + case 1: { + UINTN i; + + for (i = 0; i < 8 && x < dib->x; i++) { + out->Red = map[((*in) >> (7 - i)) & 1].red; + out->Green = map[((*in) >> (7 - i)) & 1].green; + out->Blue = map[((*in) >> (7 - i)) & 1].blue; + out++; + x++; + } + out--; + x--; + break; + } + + case 4: { + UINTN i; + + i = (*in) >> 4; + out->Red = map[i].red; + out->Green = map[i].green; + out->Blue = map[i].blue; + if (x < (dib->x - 1)) { + out++; + x++; + i = (*in) & 0x0f; + out->Red = map[i].red; + out->Green = map[i].green; + out->Blue = map[i].blue; + } + break; + } + + case 8: + out->Red = map[*in].red; + out->Green = map[*in].green; + out->Blue = map[*in].blue; + break; + + case 16: { + UINT16 i = *(UINT16 *) in; + + out->Red = (i & 0x7c00) >> 7; + out->Green = (i & 0x3e0) >> 2; + out->Blue = (i & 0x1f) << 3; + in += 1; + break; + } + + case 24: + out->Red = in[2]; + out->Green = in[1]; + out->Blue = in[0]; + in += 2; + break; + + case 32: { + UINT32 i = *(UINT32 *) in; + + pixel_blend((UINT32 *)out, i); + + in += 3; + break; + } + } + } + + /* add row padding; new lines always start at 32 bit boundary */ + row_size = in - pixmap; + in += ((row_size + 3) & ~3) - row_size; + } + + return EFI_SUCCESS; +} + +EFI_STATUS graphics_splash(UINT8 *content, UINTN len, const EFI_GRAPHICS_OUTPUT_BLT_PIXEL *background) { + EFI_GRAPHICS_OUTPUT_BLT_PIXEL pixel = {}; + EFI_GUID GraphicsOutputProtocolGuid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; + EFI_GRAPHICS_OUTPUT_PROTOCOL *GraphicsOutput = NULL; + struct bmp_dib *dib; + struct bmp_map *map; + UINT8 *pixmap; + UINT64 blt_size; + VOID *blt = NULL; + UINTN x_pos = 0; + UINTN y_pos = 0; + EFI_STATUS err; + + if (!background) { + if (StriCmp(L"Apple", ST->FirmwareVendor) == 0) { + pixel.Red = 0xc0; + pixel.Green = 0xc0; + pixel.Blue = 0xc0; + } + background = &pixel; + } + + err = LibLocateProtocol(&GraphicsOutputProtocolGuid, (VOID **)&GraphicsOutput); + if (EFI_ERROR(err)) + return err; + + err = bmp_parse_header(content, len, &dib, &map, &pixmap); + if (EFI_ERROR(err)) + goto err; + + if (dib->x < GraphicsOutput->Mode->Info->HorizontalResolution) + x_pos = (GraphicsOutput->Mode->Info->HorizontalResolution - dib->x) / 2; + if (dib->y < GraphicsOutput->Mode->Info->VerticalResolution) + y_pos = (GraphicsOutput->Mode->Info->VerticalResolution - dib->y) / 2; + + uefi_call_wrapper(GraphicsOutput->Blt, 10, GraphicsOutput, + (EFI_GRAPHICS_OUTPUT_BLT_PIXEL *)background, + EfiBltVideoFill, 0, 0, 0, 0, + GraphicsOutput->Mode->Info->HorizontalResolution, + GraphicsOutput->Mode->Info->VerticalResolution, 0); + + /* EFI buffer */ + blt_size = dib->x * dib->y * sizeof(EFI_GRAPHICS_OUTPUT_BLT_PIXEL); + blt = AllocatePool(blt_size); + if (!blt) + return EFI_OUT_OF_RESOURCES; + + err = uefi_call_wrapper(GraphicsOutput->Blt, 10, GraphicsOutput, + blt, EfiBltVideoToBltBuffer, x_pos, y_pos, 0, 0, + dib->x, dib->y, 0); + if (EFI_ERROR(err)) + goto err; + + err = bmp_to_blt(blt, dib, map, pixmap); + if (EFI_ERROR(err)) + goto err; + + err = graphics_mode(TRUE); + if (EFI_ERROR(err)) + goto err; + + err = uefi_call_wrapper(GraphicsOutput->Blt, 10, GraphicsOutput, + blt, EfiBltBufferToVideo, 0, 0, x_pos, y_pos, + dib->x, dib->y, 0); +err: + FreePool(blt); + return err; +} diff --git a/src/grp-boot/systemd-boot/splash.h b/src/grp-boot/systemd-boot/splash.h new file mode 100644 index 0000000000..09b543fb47 --- /dev/null +++ b/src/grp-boot/systemd-boot/splash.h @@ -0,0 +1,20 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org> + * Copyright (C) 2012 Harald Hoyer <harald@redhat.com> + */ + +#ifndef __SDBOOT_SPLASH_H +#define __SDBOOT_SPLASH_H + +EFI_STATUS graphics_splash(UINT8 *content, UINTN len, const EFI_GRAPHICS_OUTPUT_BLT_PIXEL *background); +#endif diff --git a/src/grp-boot/systemd-boot/stub.c b/src/grp-boot/systemd-boot/stub.c new file mode 100644 index 0000000000..9fae0c1372 --- /dev/null +++ b/src/grp-boot/systemd-boot/stub.c @@ -0,0 +1,130 @@ +/* This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2015 Kay Sievers <kay@vrfy.org> + */ + +#include <efi.h> +#include <efilib.h> + +#include "disk.h" +#include "graphics.h" +#include "linux.h" +#include "measure.h" +#include "pefile.h" +#include "splash.h" +#include "util.h" + +/* magic string to find in the binary image */ +static const char __attribute__((used)) magic[] = "#### LoaderInfo: systemd-stub " VERSION " ####"; + +static const EFI_GUID global_guid = EFI_GLOBAL_VARIABLE; + +EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) { + EFI_LOADED_IMAGE *loaded_image; + EFI_FILE *root_dir; + CHAR16 *loaded_image_path; + CHAR8 *b; + UINTN size; + BOOLEAN secure = FALSE; + CHAR8 *sections[] = { + (UINT8 *)".cmdline", + (UINT8 *)".linux", + (UINT8 *)".initrd", + (UINT8 *)".splash", + NULL + }; + UINTN addrs[ELEMENTSOF(sections)-1] = {}; + UINTN offs[ELEMENTSOF(sections)-1] = {}; + UINTN szs[ELEMENTSOF(sections)-1] = {}; + CHAR8 *cmdline = NULL; + UINTN cmdline_len; + CHAR16 uuid[37]; + EFI_STATUS err; + + InitializeLib(image, sys_table); + + err = uefi_call_wrapper(BS->OpenProtocol, 6, image, &LoadedImageProtocol, (VOID **)&loaded_image, + image, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); + if (EFI_ERROR(err)) { + Print(L"Error getting a LoadedImageProtocol handle: %r ", err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + return err; + } + + root_dir = LibOpenRoot(loaded_image->DeviceHandle); + if (!root_dir) { + Print(L"Unable to open root directory: %r ", err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + return EFI_LOAD_ERROR; + } + + loaded_image_path = DevicePathToStr(loaded_image->FilePath); + + if (efivar_get_raw(&global_guid, L"SecureBoot", &b, &size) == EFI_SUCCESS) { + if (*b > 0) + secure = TRUE; + FreePool(b); + } + + err = pefile_locate_sections(root_dir, loaded_image_path, sections, addrs, offs, szs); + if (EFI_ERROR(err)) { + Print(L"Unable to locate embedded .linux section: %r ", err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + return err; + } + + if (szs[0] > 0) + cmdline = (CHAR8 *)(loaded_image->ImageBase + addrs[0]); + + cmdline_len = szs[0]; + + /* if we are not in secure boot mode, accept a custom command line and replace the built-in one */ + if (!secure && loaded_image->LoadOptionsSize > 0) { + CHAR16 *options; + CHAR8 *line; + UINTN i; + + options = (CHAR16 *)loaded_image->LoadOptions; + cmdline_len = (loaded_image->LoadOptionsSize / sizeof(CHAR16)) * sizeof(CHAR8); + line = AllocatePool(cmdline_len); + for (i = 0; i < cmdline_len; i++) + line[i] = options[i]; + cmdline = line; + +#ifdef SD_BOOT_LOG_TPM + /* Try to log any options to the TPM, escpecially manually edited options */ + err = tpm_log_event(SD_TPM_PCR, + (EFI_PHYSICAL_ADDRESS) loaded_image->LoadOptions, + loaded_image->LoadOptionsSize, loaded_image->LoadOptions); + if (EFI_ERROR(err)) { + Print(L"Unable to add image options measurement: %r", err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + return err; + } +#endif + } + + /* export the device path this image is started from */ + if (disk_get_part_uuid(loaded_image->DeviceHandle, uuid) == EFI_SUCCESS) + efivar_set(L"LoaderDevicePartUUID", uuid, FALSE); + + if (szs[3] > 0) + graphics_splash((UINT8 *)((UINTN)loaded_image->ImageBase + addrs[3]), szs[3], NULL); + + err = linux_exec(image, cmdline, cmdline_len, + (UINTN)loaded_image->ImageBase + addrs[1], + (UINTN)loaded_image->ImageBase + addrs[2], szs[2]); + + graphics_mode(FALSE); + Print(L"Execution of embedded linux image failed: %r\n", err); + uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); + return err; +} diff --git a/src/grp-boot/systemd-boot/test-efi-create-disk.sh b/src/grp-boot/systemd-boot/test-efi-create-disk.sh new file mode 100755 index 0000000000..cd4699dc18 --- /dev/null +++ b/src/grp-boot/systemd-boot/test-efi-create-disk.sh @@ -0,0 +1,42 @@ +#!/bin/bash -e + +# create GPT table with EFI System Partition +rm -f test-efi-disk.img +dd if=/dev/null of=test-efi-disk.img bs=1M seek=512 count=1 +parted --script test-efi-disk.img "mklabel gpt" "mkpart ESP fat32 1MiB 511MiB" "set 1 boot on" + +# create FAT32 file system +LOOP=$(losetup --show -f -P test-efi-disk.img) +mkfs.vfat -F32 ${LOOP}p1 +mkdir -p mnt +mount ${LOOP}p1 mnt + +mkdir -p mnt/EFI/{BOOT,systemd} +cp systemd-bootx64.efi mnt/EFI/BOOT/BOOTX64.efi + +[ -e /boot/shellx64.efi ] && cp /boot/shellx64.efi mnt/ + +mkdir mnt/EFI/Linux +echo -n "foo=yes bar=no root=/dev/fakeroot debug rd.break=initqueue" > mnt/cmdline.txt +objcopy \ + --add-section .osrel=/etc/os-release --change-section-vma .osrel=0x20000 \ + --add-section .cmdline=mnt/cmdline.txt --change-section-vma .cmdline=0x30000 \ + --add-section .splash=test/splash.bmp --change-section-vma .splash=0x40000 \ + --add-section .linux=/boot/$(cat /etc/machine-id)/$(uname -r)/linux --change-section-vma .linux=0x2000000 \ + --add-section .initrd=/boot/$(cat /etc/machine-id)/$(uname -r)/initrd --change-section-vma .initrd=0x3000000 \ + linuxx64.efi.stub mnt/EFI/Linux/linux-test.efi + +# install entries +mkdir -p mnt/loader/entries +echo -e "timeout 3\n" > mnt/loader/loader.conf +echo -e "title Test\nefi /test\n" > mnt/loader/entries/test.conf +echo -e "title Test2\nlinux /test2\noptions option=yes word number=1000 more\n" > mnt/loader/entries/test2.conf +echo -e "title Test3\nlinux /test3\n" > mnt/loader/entries/test3.conf +echo -e "title Test4\nlinux /test4\n" > mnt/loader/entries/test4.conf +echo -e "title Test5\nefi /test5\n" > mnt/loader/entries/test5.conf +echo -e "title Test6\nlinux /test6\n" > mnt/loader/entries/test6.conf + +sync +umount mnt +rmdir mnt +losetup -d $LOOP diff --git a/src/grp-boot/systemd-boot/util.c b/src/grp-boot/systemd-boot/util.c new file mode 100644 index 0000000000..98c5be74ce --- /dev/null +++ b/src/grp-boot/systemd-boot/util.c @@ -0,0 +1,345 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org> + * Copyright (C) 2012 Harald Hoyer <harald@redhat.com> + */ + +#include <efi.h> +#include <efilib.h> + +#include "util.h" + +/* + * Allocated random UUID, intended to be shared across tools that implement + * the (ESP)\loader\entries\<vendor>-<revision>.conf convention and the + * associated EFI variables. + */ +static const EFI_GUID loader_guid = { 0x4a67b082, 0x0a4c, 0x41cf, {0xb6, 0xc7, 0x44, 0x0b, 0x29, 0xbb, 0x8c, 0x4f} }; + +#ifdef __x86_64__ +UINT64 ticks_read(VOID) { + UINT64 a, d; + __asm__ volatile ("rdtsc" : "=a" (a), "=d" (d)); + return (d << 32) | a; +} +#elif defined(__i386__) +UINT64 ticks_read(VOID) { + UINT64 val; + __asm__ volatile ("rdtsc" : "=A" (val)); + return val; +} +#else +UINT64 ticks_read(VOID) { + UINT64 val = 1; + return val; +} +#endif + +/* count TSC ticks during a millisecond delay */ +UINT64 ticks_freq(VOID) { + UINT64 ticks_start, ticks_end; + + ticks_start = ticks_read(); + uefi_call_wrapper(BS->Stall, 1, 1000); + ticks_end = ticks_read(); + + return (ticks_end - ticks_start) * 1000; +} + +UINT64 time_usec(VOID) { + UINT64 ticks; + static UINT64 freq; + + ticks = ticks_read(); + if (ticks == 0) + return 0; + + if (freq == 0) { + freq = ticks_freq(); + if (freq == 0) + return 0; + } + + return 1000 * 1000 * ticks / freq; +} + +EFI_STATUS parse_boolean(CHAR8 *v, BOOLEAN *b) { + if (strcmpa(v, (CHAR8 *)"1") == 0 || + strcmpa(v, (CHAR8 *)"yes") == 0 || + strcmpa(v, (CHAR8 *)"y") == 0 || + strcmpa(v, (CHAR8 *)"true") == 0) { + *b = TRUE; + return EFI_SUCCESS; + } + + if (strcmpa(v, (CHAR8 *)"0") == 0 || + strcmpa(v, (CHAR8 *)"no") == 0 || + strcmpa(v, (CHAR8 *)"n") == 0 || + strcmpa(v, (CHAR8 *)"false") == 0) { + *b = FALSE; + return EFI_SUCCESS; + } + + return EFI_INVALID_PARAMETER; +} + +EFI_STATUS efivar_set_raw(const EFI_GUID *vendor, CHAR16 *name, CHAR8 *buf, UINTN size, BOOLEAN persistent) { + UINT32 flags; + + flags = EFI_VARIABLE_BOOTSERVICE_ACCESS|EFI_VARIABLE_RUNTIME_ACCESS; + if (persistent) + flags |= EFI_VARIABLE_NON_VOLATILE; + + return uefi_call_wrapper(RT->SetVariable, 5, name, (EFI_GUID *)vendor, flags, size, buf); +} + +EFI_STATUS efivar_set(CHAR16 *name, CHAR16 *value, BOOLEAN persistent) { + return efivar_set_raw(&loader_guid, name, (CHAR8 *)value, value ? (StrLen(value)+1) * sizeof(CHAR16) : 0, persistent); +} + +EFI_STATUS efivar_set_int(CHAR16 *name, UINTN i, BOOLEAN persistent) { + CHAR16 str[32]; + + SPrint(str, 32, L"%d", i); + return efivar_set(name, str, persistent); +} + +EFI_STATUS efivar_get(CHAR16 *name, CHAR16 **value) { + CHAR8 *buf; + CHAR16 *val; + UINTN size; + EFI_STATUS err; + + err = efivar_get_raw(&loader_guid, name, &buf, &size); + if (EFI_ERROR(err)) + return err; + + val = StrDuplicate((CHAR16 *)buf); + if (!val) { + FreePool(buf); + return EFI_OUT_OF_RESOURCES; + } + + *value = val; + return EFI_SUCCESS; +} + +EFI_STATUS efivar_get_int(CHAR16 *name, UINTN *i) { + CHAR16 *val; + EFI_STATUS err; + + err = efivar_get(name, &val); + if (!EFI_ERROR(err)) { + *i = Atoi(val); + FreePool(val); + } + return err; +} + +EFI_STATUS efivar_get_raw(const EFI_GUID *vendor, CHAR16 *name, CHAR8 **buffer, UINTN *size) { + CHAR8 *buf; + UINTN l; + EFI_STATUS err; + + l = sizeof(CHAR16 *) * EFI_MAXIMUM_VARIABLE_SIZE; + buf = AllocatePool(l); + if (!buf) + return EFI_OUT_OF_RESOURCES; + + err = uefi_call_wrapper(RT->GetVariable, 5, name, (EFI_GUID *)vendor, NULL, &l, buf); + if (!EFI_ERROR(err)) { + *buffer = buf; + if (size) + *size = l; + } else + FreePool(buf); + return err; + +} + +VOID efivar_set_time_usec(CHAR16 *name, UINT64 usec) { + CHAR16 str[32]; + + if (usec == 0) + usec = time_usec(); + if (usec == 0) + return; + + SPrint(str, 32, L"%ld", usec); + efivar_set(name, str, FALSE); +} + +static INTN utf8_to_16(CHAR8 *stra, CHAR16 *c) { + CHAR16 unichar; + UINTN len; + UINTN i; + + if (stra[0] < 0x80) + len = 1; + else if ((stra[0] & 0xe0) == 0xc0) + len = 2; + else if ((stra[0] & 0xf0) == 0xe0) + len = 3; + else if ((stra[0] & 0xf8) == 0xf0) + len = 4; + else if ((stra[0] & 0xfc) == 0xf8) + len = 5; + else if ((stra[0] & 0xfe) == 0xfc) + len = 6; + else + return -1; + + switch (len) { + case 1: + unichar = stra[0]; + break; + case 2: + unichar = stra[0] & 0x1f; + break; + case 3: + unichar = stra[0] & 0x0f; + break; + case 4: + unichar = stra[0] & 0x07; + break; + case 5: + unichar = stra[0] & 0x03; + break; + case 6: + unichar = stra[0] & 0x01; + break; + } + + for (i = 1; i < len; i++) { + if ((stra[i] & 0xc0) != 0x80) + return -1; + unichar <<= 6; + unichar |= stra[i] & 0x3f; + } + + *c = unichar; + return len; +} + +CHAR16 *stra_to_str(CHAR8 *stra) { + UINTN strlen; + UINTN len; + UINTN i; + CHAR16 *str; + + len = strlena(stra); + str = AllocatePool((len + 1) * sizeof(CHAR16)); + + strlen = 0; + i = 0; + while (i < len) { + INTN utf8len; + + utf8len = utf8_to_16(stra + i, str + strlen); + if (utf8len <= 0) { + /* invalid utf8 sequence, skip the garbage */ + i++; + continue; + } + + strlen++; + i += utf8len; + } + str[strlen] = '\0'; + return str; +} + +CHAR16 *stra_to_path(CHAR8 *stra) { + CHAR16 *str; + UINTN strlen; + UINTN len; + UINTN i; + + len = strlena(stra); + str = AllocatePool((len + 2) * sizeof(CHAR16)); + + str[0] = '\\'; + strlen = 1; + i = 0; + while (i < len) { + INTN utf8len; + + utf8len = utf8_to_16(stra + i, str + strlen); + if (utf8len <= 0) { + /* invalid utf8 sequence, skip the garbage */ + i++; + continue; + } + + if (str[strlen] == '/') + str[strlen] = '\\'; + if (str[strlen] == '\\' && str[strlen-1] == '\\') { + /* skip double slashes */ + i += utf8len; + continue; + } + + strlen++; + i += utf8len; + } + str[strlen] = '\0'; + return str; +} + +CHAR8 *strchra(CHAR8 *s, CHAR8 c) { + do { + if (*s == c) + return s; + } while (*s++); + return NULL; +} + +INTN file_read(EFI_FILE_HANDLE dir, CHAR16 *name, UINTN off, UINTN size, CHAR8 **content) { + EFI_FILE_HANDLE handle; + CHAR8 *buf; + UINTN buflen; + EFI_STATUS err; + UINTN len; + + err = uefi_call_wrapper(dir->Open, 5, dir, &handle, name, EFI_FILE_MODE_READ, 0ULL); + if (EFI_ERROR(err)) + return err; + + if (size == 0) { + EFI_FILE_INFO *info; + + info = LibFileInfo(handle); + buflen = info->FileSize+1; + FreePool(info); + } else + buflen = size; + + if (off > 0) { + err = uefi_call_wrapper(handle->SetPosition, 2, handle, off); + if (EFI_ERROR(err)) + return err; + } + + buf = AllocatePool(buflen); + err = uefi_call_wrapper(handle->Read, 3, handle, &buflen, buf); + if (!EFI_ERROR(err)) { + buf[buflen] = '\0'; + *content = buf; + len = buflen; + } else { + len = err; + FreePool(buf); + } + + uefi_call_wrapper(handle->Close, 1, handle); + return len; +} diff --git a/src/grp-boot/systemd-boot/util.h b/src/grp-boot/systemd-boot/util.h new file mode 100644 index 0000000000..e673cdf9a0 --- /dev/null +++ b/src/grp-boot/systemd-boot/util.h @@ -0,0 +1,48 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org> + * Copyright (C) 2012 Harald Hoyer <harald@redhat.com> + */ + +#ifndef __SDBOOT_UTIL_H +#define __SDBOOT_UTIL_H + +#include <efi.h> +#include <efilib.h> + +#define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0])) + +static inline const CHAR16 *yes_no(BOOLEAN b) { + return b ? L"yes" : L"no"; +} + +EFI_STATUS parse_boolean(CHAR8 *v, BOOLEAN *b); + +UINT64 ticks_read(void); +UINT64 ticks_freq(void); +UINT64 time_usec(void); + +EFI_STATUS efivar_set(CHAR16 *name, CHAR16 *value, BOOLEAN persistent); +EFI_STATUS efivar_set_raw(const EFI_GUID *vendor, CHAR16 *name, CHAR8 *buf, UINTN size, BOOLEAN persistent); +EFI_STATUS efivar_set_int(CHAR16 *name, UINTN i, BOOLEAN persistent); +VOID efivar_set_time_usec(CHAR16 *name, UINT64 usec); + +EFI_STATUS efivar_get(CHAR16 *name, CHAR16 **value); +EFI_STATUS efivar_get_raw(const EFI_GUID *vendor, CHAR16 *name, CHAR8 **buffer, UINTN *size); +EFI_STATUS efivar_get_int(CHAR16 *name, UINTN *i); + +CHAR8 *strchra(CHAR8 *s, CHAR8 c); +CHAR16 *stra_to_path(CHAR8 *stra); +CHAR16 *stra_to_str(CHAR8 *stra); + +INTN file_read(EFI_FILE_HANDLE dir, CHAR16 *name, UINTN off, UINTN size, CHAR8 **content); +#endif |